Stock market glossary, A to Z

Accrued Interest

Accrued interest is the interest that has built up on a bond since its last coupon payment but has not yet been paid to the bondholder.

When you buy a bond between coupon dates, the seller receives the accrued interest as part of the clean price settlement. The buyer then recovers it on the next coupon payment. Understanding accrued interest is essential for calculating the true all-in cost of a bond purchase.

Advance-Decline Ratio

The Advance-Decline Ratio is the number of stocks that rose in a session divided by the number that fell, used to gauge overall market breadth.

An ADR above 1 signals broad participation in an up-move, while a ratio below 1 suggests weakness across the board even if the index is flat. Indian traders watch Nifty 500 breadth to confirm or question headline index moves.

AIF

An Alternative Investment Fund is a SEBI-regulated private pooled vehicle for sophisticated investors, covering hedge funds, private equity, real estate and venture capital strategies.

SEBI divides AIFs into three categories: Category I (venture capital, SME and infrastructure funds), Category II (private equity and debt funds with no leverage restrictions) and Category III (hedge funds that use complex or leveraged strategies). Minimum investment is typically Rs. 1 crore per investor. AIFs are distinct from mutual funds, which are open to retail investors at much lower minimums.

Algo Trading (Algorithmic Trading)

Algorithmic trading uses computer programmes to place buy or sell orders automatically when preset conditions of price, volume, or time are met, without manual intervention.

SEBI mandates that all algorithms used for trading on Indian exchanges must be approved by the exchange before deployment. Algo trading accounts for a large share of NSE daily turnover. Retail investors can access simple strategy-automation platforms via API-enabled brokers; more complex high-frequency infrastructure requires proprietary co-location arrangements with the exchange.

All-Time High (ATH)

An all-time high is the highest price a stock or index has ever reached since it began trading, surpassing every previous peak.

When the Nifty or Sensex prints a fresh all-time high, it means there is no overhead supply of trapped buyers waiting to sell at break-even, which is often read as a sign of strength. ATH levels also become psychological reference points for the market.

Alpha

Alpha measures the excess return a stock or fund delivers above its benchmark index, after adjusting for market risk (beta).

A portfolio with alpha of 3 means it outperformed its benchmark by 3 percentage points on a risk-adjusted basis. In Indian markets, alpha is often calculated against Nifty 50 or a relevant sectoral index.

Alpha

The excess return of an investment above the return predicted by its benchmark or by its level of market risk (beta).

Alpha is a measure of investment performance that represents the excess return earned by a portfolio or stock above its expected return given its level of market risk. In the Capital Asset Pricing Model (CAPM), expected return = risk-free rate + beta x (market return minus risk-free rate). Alpha is the actual return minus this expected return. A positive alpha means the investment outperformed what its risk level would predict; a negative alpha means it underperformed. For active fund managers, generating consistent positive alpha is the core justification for charging management fees above passive (index) funds. For stock analysis, alpha can also refer informally to any factor or insight that gives a stock an advantage over what the market has already priced in. Importantly, alpha and beta measure different things: beta measures sensitivity to market movements; alpha measures the manager's or stock's excess performance after controlling for that market sensitivity.

AMC (Asset Management Company)

An AMC is the fund house that pools investor money, manages the portfolio of a mutual fund scheme, and is registered and regulated by SEBI.

Examples include SBI Mutual Fund, HDFC AMC, and Nippon India Mutual Fund. The AMC earns its revenue through the expense ratio charged on AUM. SEBI requires each AMC to be a separate legal entity from its sponsor and to have a qualified fund manager running each scheme.

AMO (After Market Order)

An After Market Order (AMO) is a buy or sell instruction placed after market hours that gets queued for execution when the exchange opens the next trading day.

AMOs are accepted by Indian brokers typically between 3:45 PM and 8:45 AM IST for NSE/BSE equity segments. They are processed at the opening auction price, so actual fill may differ from the quoted price at order placement.

Anchor Investor

An anchor investor is a qualified institutional buyer (QIB) that commits to an IPO allocation before it opens, helping signal confidence to other investors.

SEBI allows up to 60 percent of the QIB portion to be reserved for anchor investors. They receive allotment one day before the IPO opens and are subject to a 30-day lock-in on half their shares and a 90-day lock-in on the rest.

Anchor Investor

A qualified institutional buyer allocated shares in an IPO one day before the public subscription opens.

An anchor investor is a QIB (Qualified Institutional Buyer) that is allocated shares in an IPO or FPO through a private placement process conducted one day before the public issue opens. SEBI's anchor investor framework allows companies to gauge institutional demand and provide price discovery before the public offer. Anchor allotments are subject to a 30-day lock-in. A strong anchor book (well-known institutional investors at or above the issue price) is generally a positive signal for public investor confidence.

Arbitrage

Arbitrage is the near-simultaneous buying and selling of the same asset in different markets or forms to lock in a risk-free profit from a price gap.

A common Indian example is cash-futures arbitrage: buying a stock in the cash segment and selling its future when the future trades at a premium, capturing the spread by expiry. Arbitrage funds use this strategy and are taxed as equity funds.

ASBA (Application Supported by Blocked Amount)

ASBA is an IPO payment mechanism where your application money is blocked in your bank account, not debited, until allotment is confirmed.

SEBI mandated ASBA for retail investors in 2010. Your funds remain in your savings account and earn interest until the allotment date. Only the amount equivalent to allotted shares is actually debited; the rest is unblocked automatically.

Ask Price

The ask price is the lowest price at which a seller is willing to sell a security at a given moment on the exchange.

On the NSE order book, the ask price appears on the right column of market depth. A buyer placing a market order gets filled at or near the current best ask. The difference between the ask and the bid price is the bid-ask spread.

ASM (Additional Surveillance Measure)

ASM is a SEBI framework that places high-volatility or manipulated stocks under heightened scrutiny, imposing tighter margins and trade restrictions.

Stocks in ASM are typically flagged due to sharp price movements, low liquidity, or corporate governance concerns. The framework has multiple stages: higher stages require 100 percent upfront margin and reduce the attractiveness for speculative trading.

At-the-Money (ATM)

An option is at-the-money when the underlying asset's market price is approximately equal to the option's strike price.

ATM options have the highest time value and the fastest theta decay. They have a delta near 0.5 for calls and near -0.5 for puts. In Indian markets, traders typically buy ATM options when they expect a directional move but are uncertain about the magnitude.

AUM (Assets Under Management)

AUM is the total market value of investments that a mutual fund, portfolio manager, or asset management company manages on behalf of its investors.

In India, AMFI publishes monthly AUM data for each fund house and scheme. A higher AUM can indicate investor trust but may also make it harder for large-cap funds to generate alpha due to liquidity constraints.

Backwardation

Backwardation is a futures market condition where the near-month contract trades at a premium over far-month contracts, indicating immediate demand is stronger than future supply expectations.

In Indian commodity and currency futures, backwardation often reflects supply squeezes or high carrying costs. It is the opposite of contango. Equity index futures in India rarely enter backwardation except during dividend-heavy periods.

Balance of Payments (BoP)

The balance of payments is the comprehensive record of all economic transactions between India and the rest of the world over a given period.

BoP has two main accounts: the current account (goods, services, and transfers) and the capital and financial account (foreign investment and loans). A surplus means more money flows in than out, supporting the rupee. A deficit means the opposite, putting pressure on forex reserves.

Bank Nifty

Bank Nifty is the NSE index tracking the 12 most liquid and large-cap Indian banking stocks, widely used as the benchmark for banking-sector derivatives.

It is one of the most actively traded indices in India's F&O segment. Weekly Bank Nifty options expire every Wednesday. Movements in Bank Nifty often reflect sentiment around RBI policy, credit growth, and quarterly NPA data.

Bank Rate

The bank rate is the rate at which the RBI lends long-term funds to commercial banks without collateral, now aligned with the Marginal Standing Facility rate.

Historically a standalone policy tool, the bank rate is today kept in step with the MSF rate, which is 5.5% as of mid-2026. It is mainly used as a reference for penalty rates on shortfalls in reserve requirements rather than as an active lever.

Base Effect

The distortion in percentage growth rates caused by an unusually high or low comparison period.

Base effect refers to how growth metrics (revenue growth, profit growth, or macroeconomic data like CPI or GDP) are influenced by the comparison period. A company that had a very bad quarter a year ago will show high percentage growth in the current quarter even with modest absolute improvement, simply because the denominator (last year's number) was very low. Analysts account for this by adjusting reported growth rates for unusually favourable or unfavourable base periods.

Basis

Basis is the difference between the futures price and the spot price of an underlying asset at any given point in time.

A positive basis (futures above spot) is normal in equity markets due to the cost of carry. As expiry approaches, basis typically converges to zero. Traders track basis to assess whether the market is in contango or backwardation and to plan rollover strategies.

Bear Market

A bear market is a sustained fall in prices, conventionally marked when a broad index drops 20% or more from a recent peak amid widespread pessimism.

The 20% threshold is market convention, not a legal definition. Bear markets are a normal, recurring part of the cycle, and historically every Indian bear market has eventually been followed by new highs. The danger for investors is capitulating near the bottom.

Benchmark Index

A benchmark index, like the Nifty 50 or Sensex, is a reference basket of stocks used to measure the performance of the broad market or of a fund.

Fund managers are judged on whether they beat their benchmark after fees, which is why outperforming the Nifty 50 is the bar for an actively managed large-cap fund. Index funds and ETFs aim to match a benchmark rather than beat it.

Beta

Beta measures how much a stock tends to move relative to its benchmark index: a beta of 1.2 means the stock typically moves 1.2 percent for every 1 percent market move.

A beta above 1 indicates higher volatility than the market; below 1 means lower volatility. In Indian markets, beta is usually calculated relative to Nifty 50. High-beta stocks like small-caps tend to amplify both rallies and corrections.

Beta

A measure of a stock's price sensitivity to overall market movements, where a beta of 1 means it moves in line with the market.

Beta is a statistical measure of a stock's or portfolio's price volatility relative to a benchmark index (typically Nifty 50 for Indian stocks). Beta is calculated as the covariance of the stock's returns with the index returns, divided by the variance of the index returns. A beta of 1.0 means the stock moves in line with the index: if the Nifty rises 1 percent, the stock typically rises 1 percent. A beta above 1.0 (e.g., 1.5) means the stock amplifies market moves: a 1 percent Nifty move leads to an expected 1.5 percent move in the stock. A beta below 1.0 (e.g., 0.5) means the stock is less volatile than the market: more defensive, lower market sensitivity. A beta near zero means the stock is largely uncorrelated with the market. Negative beta (rare) means the stock moves opposite to the market. High-beta stocks (cyclicals, small-caps) tend to outperform in bull runs and underperform sharply in corrections. Low-beta stocks (FMCG, pharma, utilities) are used in defensive portfolios to dampen drawdowns. Beta is backward-looking and can change as a company's business mix or leverage changes.

Bid Price

The bid price is the highest price a buyer is currently willing to pay for a security on the exchange order book.

On the NSE market depth screen, the best bid appears at the top of the buy side. A seller placing a market order gets filled at or near the best bid. The gap between bid and ask is the bid-ask spread, which narrows in liquid stocks.

Bid-Ask Spread

The bid-ask spread is the difference between the highest buy price and the lowest sell price in the order book, representing the implicit transaction cost of trading.

In highly liquid stocks like Reliance or TCS on the NSE, the spread is often as tight as one paisa. In illiquid small-caps, spreads can be several rupees. A wider spread increases the cost of entry and exit for traders.

Block Deal

A block deal is a single trade of at least 500,000 shares or INR 10 crore in value, executed through the exchange's dedicated block deal window.

Block deals on BSE and NSE take place in a 15-minute window that opens at 8:45 AM IST. Price must be within 1 percent of the previous close or current market price. Large institutions and promoters use block deals to avoid impacting the open market.

Block Deal

A large-lot share trade executed in a dedicated pre-market or afternoon window, separate from normal continuous trading.

A block deal is a transaction of at least 5 lakh shares or a minimum value set by SEBI, executed in a special trading window provided by the exchange rather than in continuous market hours. Block deal windows are opened twice daily and allow bulk buyers and sellers such as institutional investors, promoters, and funds to transact without disrupting normal market prices. Block deals are disclosed to the exchange immediately and are publicly visible.

Bond Yield

Bond yield is the effective annual return on a bond given its price and coupon, and it moves inversely to the bond's price.

India's benchmark is the 10-year government security (G-sec) yield, which sat near 6.9% in early June 2026 and is treated as the risk-free rate. Rising bond yields tend to pressure equity valuations by raising the discount rate on future profits.

Bonus Issue

A bonus issue is a corporate action where a company issues additional shares to existing shareholders free of cost, in a fixed ratio, funded from its reserves.

A 1:1 bonus doubles the share count while halving the price, leaving market cap unchanged. Indian companies announce bonus issues to improve liquidity and signal confidence in earnings. The record date determines eligibility.

Bonus Issue

Free additional shares issued to existing shareholders in a fixed ratio, funded from a company's accumulated reserves.

A bonus issue (also called a scrip issue or capitalisation issue) is when a company issues additional shares to its existing shareholders for free, in a fixed ratio (e.g., 1:1 means one bonus share for every share held). The shares are funded by converting free reserves, share premium, or retained earnings into paid-up capital. A bonus issue does not raise new money for the company; it simply converts reserves into additional share capital. The total market capitalisation remains the same immediately after the bonus issue -- the price per share adjusts proportionally downward. For example, in a 1:1 bonus, a shareholder with 100 shares at Rs. 200 becomes a holder of 200 shares at approximately Rs. 100. Bonus issues are subject to SEBI's guidelines and require board and shareholder approval. They are a signal of confidence from management that retained earnings are strong enough to be capitalised, and they improve liquidity by increasing the float at a lower per-share price.

Book Building

Book building is the IPO price-discovery process where the company offers a price band and investors bid within it, and the final issue price is set from the demand collected.

Most Indian IPOs use the book-building route, where bids across the price band build a demand book. The cut-off price is then fixed based on subscription. The alternative, a fixed-price issue, names a single price upfront and is now rare for large issues.

Book Value

Book value is the net asset value of a company, calculated as total assets minus total liabilities, often expressed on a per-share basis.

Per-share book value equals shareholders' equity divided by total shares outstanding. If a stock trades below book value, it may be undervalued; above book value is typical for high-growth businesses. The Price-to-Book ratio compares market price to book value.

Broker

A broker is a SEBI-registered intermediary that executes buy and sell orders on behalf of investors on exchanges like NSE and BSE.

Brokers in India can be full-service (offering research and advisory) or discount (flat-fee, platform-only). They hold a trading member license from the exchange and are regulated by SEBI. Zerodha, Groww, and ICICI Direct are prominent Indian examples.

BTST (Buy Today Sell Tomorrow)

BTST, or Buy Today Sell Tomorrow, is a trading strategy where shares bought in one session are sold the next trading day before delivery is fully credited under the T+1 settlement cycle.

In the Indian market, BTST allows a trader to sell shares on the next trading day without waiting for shares to be credited to the demat account after settlement. It is commonly used for short-term price moves, but it carries delivery risk: if the original seller from whom you bought the shares fails to deliver, your BTST sale can trigger an auction and lead to a debit or loss adjustment.

Bulk Deal

A bulk deal is any transaction where the traded quantity in a single order exceeds 0.5 percent of the total listed shares of a company on a given day.

NSE and BSE disclose all bulk deals at end of day. Unlike block deals, bulk deals happen through the regular market window at prevailing prices. Promoters, FIIs, and large domestic funds are frequent participants. Tracking bulk deals helps identify institutional interest.

Bulk Deal

A single trade exceeding 0.5 percent of a company's total listed shares, requiring immediate public disclosure.

A bulk deal is any trade where the quantity bought or sold in a single transaction exceeds 0.5 percent of the total listed shares of a company. Unlike block deals, bulk deals execute during normal trading hours on the regular market. The exchange discloses bulk deal information at the end of the trading day, showing the buyer, seller, quantity, and trade price. Institutional investors, mutual funds, FIIs, and promoters are the typical participants.

Bull Market

A bull market is a sustained rise in prices driven by optimism, strong earnings and rising participation, the opposite of a bear market.

There is no fixed percentage that defines a bull market the way 20% defines a bear market, but the term describes a prolonged uptrend. The danger for investors in a long bull run is complacency: stretched valuations and excess risk-taking at the most expensive point.

Buyback

A share buyback is when a company repurchases its own shares from the market or via a tender offer, reducing the total outstanding share count.

Buybacks are a tax-efficient alternative to dividends for returning capital in India. SEBI's buyback regulations cap the repurchase at 25 percent of paid-up capital and free reserves. After a buyback, EPS typically rises because fewer shares remain.

Share Buyback

A company buying its own shares from public shareholders, reducing share count and returning capital.

A share buyback (repurchase) is when a listed company uses its own cash to purchase its outstanding shares from public shareholders, typically through a tender offer (at a fixed price) or open market purchase. Buybacks reduce the total shares outstanding, increasing earnings per share (EPS) for remaining shareholders and returning capital in a tax-efficient manner (versus dividends). SEBI regulates Indian buybacks through the Buyback of Securities Regulations. Companies must maintain specified open offer thresholds and cannot buy back more than 25 percent of paid-up capital and free reserves without shareholder approval.

CAGR

Compound Annual Growth Rate - the smoothed annual growth rate of an investment over a specified period, accounting for compounding; the standard metric for comparing investment performance across time horizons.

CAGR answers the question: if my investment grew at a constant rate each year, what would that rate have been? It is computed as (ending value / beginning value)^(1 / number of years) minus 1. For example, a mutual fund that grew from Rs.1 lakh to Rs.2 lakh over five years delivered a CAGR of approximately 14.9%, regardless of how volatile the path was year to year. CAGR is more informative than absolute return for comparing funds of different ages because it annualises the return to a common unit. Its limitation is that it smooths over volatility: two funds with identical 5-year CAGRs can have dramatically different drawdowns and risk profiles, which CAGR does not capture. For SIP investments (where capital is deployed gradually rather than as a lump sum), XIRR - which accounts for the timing of cash flows - is the correct metric rather than point-to-point CAGR on NAV.

CAGR (Compound Annual Growth Rate)

CAGR is the annualised rate at which an investment grows from its beginning value to its ending value over a specified period, assuming reinvestment.

CAGR smooths out year-to-year volatility to show a single, steady growth rate. For mutual fund comparisons in India, CAGR over 3, 5, and 10 years is the standard metric. It differs from XIRR when cash flows occur at irregular intervals.

Call Option

A call option gives the buyer the right, but not the obligation, to purchase an underlying asset at a fixed strike price on or before the expiry date.

In India, index and stock options are European-style and can only be exercised on expiry. Buying a call is a bullish strategy: the maximum loss is the premium paid, while the profit potential is theoretically unlimited. NSE lists weekly and monthly Nifty call options.

Call Option

A contract giving the buyer the right, but not the obligation, to purchase an asset at a specified strike price on or before the expiry date, for which the buyer pays a premium.

In Indian equity derivatives markets, a call option is purchased when the buyer expects the underlying asset (a stock or the Nifty 50 or BankNifty index) to rise above the strike price before expiry. If the underlying exceeds the strike price, the call is said to be in the money (ITM); if it stays below, the option expires worthless and the buyer loses only the premium paid. Call sellers (writers) receive the premium upfront and profit if the underlying stays below the strike price. SEBI requires that Indian option contracts be settled at expiry in cash against the settlement price. Exchange-traded calls on NSE are European-style for index options (exercisable only at expiry) and American-style for stock options.

Candlestick Pattern

A candlestick pattern is a price chart formation that uses open, high, low, and close data to suggest possible trend continuation or reversal.

Originating in Japanese charting methods, candlesticks display a body and wicks that help traders read price behaviour within a chosen time frame. In Indian markets, patterns like the Doji, Hammer, and Engulfing are widely followed, but they are more reliable when confirmed by volume, trend structure, and nearby support or resistance levels.

Capital Expenditure (Capex)

Money spent on acquiring or improving long-term physical or intangible assets, recorded on the balance sheet.

Capital expenditure (capex) is investment in long-term assets such as property, plant, equipment, or technology infrastructure, recorded as an asset and depreciated over its useful life rather than expensed immediately. Growth capex creates future revenue; maintenance capex sustains existing assets. Free cash flow is operating cash flow minus capex. Capital-intensive sectors such as steel, telecom, and power require large ongoing capex and are typically compared by Return on Invested Capital.

Cash Conversion Cycle (CCC)

The number of days a company takes to convert inventory and receivables into cash after paying its suppliers.

The Cash Conversion Cycle (CCC) is calculated as Days Inventory Outstanding plus Days Sales Outstanding minus Days Payable Outstanding. A lower CCC indicates faster cash collection and efficient working capital management. A negative CCC -- where cash is collected from customers before suppliers are paid -- is a highly capital-efficient model seen in retailers like Dmart. A rising CCC in an industrial or FMCG company may signal channel stuffing, customer stress, or deteriorating supplier negotiating power.

Cash Reserve Ratio (CRR)

CRR is the share of its deposits a bank must keep with the RBI as cash, earning no interest, which is 3.00% as of mid-2026.

CRR is a quantity tool of monetary policy: raising it locks up more of every deposit and reduces lending capacity, while cutting it releases cash into the system. Because the parked cash earns nothing, a high CRR is a drag on bank profitability.

Circuit Breaker

A circuit breaker is an exchange-level mechanism that halts all trading when the benchmark index moves beyond a preset percentage threshold in a single session.

SEBI mandates index-wide circuit breakers on NSE and BSE at 10, 15, and 20 percent. A 10 percent move triggers a 45-minute halt if it happens before 1 PM, a 15-minute halt between 1 PM and 2:30 PM, and no resumption for the rest of the day after 2:30 PM. Stock-specific limits are called circuit filters.

Circuit Breaker

A market-wide trading halt triggered when the index falls by a specified percentage in a single session.

A circuit breaker is a market-wide trading pause triggered when the Nifty 50 or BSE Sensex falls by 10 percent, 15 percent, or 20 percent from the previous closing level in a single trading session. SEBI's circuit breaker rules set halt durations: a 10 percent fall triggers a 45-minute halt, 15 percent triggers a 1-hour 45-minute halt, and 20 percent triggers a trading stop for the remainder of the day. Circuit breakers give markets time to absorb panic, allow investors to assess information, and prevent disorderly price discovery in extreme market stress.

Circuit Filter

A circuit filter is the stock-specific percentage limit beyond which an individual security cannot trade in a single session, set at 2, 5, 10, or 20 percent.

Unlike the index-wide circuit breaker that halts all trading, circuit filters apply only to individual stocks. NSE and BSE assign a band based on the stock's volatility history and liquidity. Stocks under ASM surveillance often have their circuit bands tightened. Once a filter is hit, only orders on the permitted side are accepted.

Commodity Futures

A commodity futures contract is a standardised agreement to buy or sell a physical commodity at a predetermined price on a future date, traded on regulated exchanges like MCX and NCDEX.

In India, commodity futures cover metals (gold, silver, copper, aluminium), energy (crude oil, natural gas) and agri commodities (cotton, castor seed, soybean). MCX handles metals and energy; NCDEX focuses on agri. Futures enable price discovery, hedging by producers and consumers, and speculative participation. Physical delivery is possible at expiry but most retail positions are cash-settled. The commodity derivatives market is regulated by SEBI.

Consumer Price Index (CPI)

The CPI tracks the price of a fixed basket of goods and services that a typical household buys, and is the main gauge of retail inflation in India.

The RBI targets CPI inflation at 4% within a 2% to 6% band. The CPI basket is weighted heavily toward food and fuel, so monsoon and oil swings drive it. Core CPI strips out food and fuel to show the underlying trend the RBI watches most closely.

Contango

Contango is a futures market condition where far-month contracts trade at a higher price than near-month contracts, typically because of carrying costs.

Equity index futures in India are almost always in contango because the cost of carry (interest minus expected dividends) is positive. The premium erodes as expiry approaches. Understanding contango helps traders assess fair value while rolling positions forward.

Contra Fund

A mutual fund that deliberately invests in stocks currently out of favour with the market, betting on mean reversion.

A contra fund is a mutual fund category defined by SEBI where the fund manager takes contrarian positions: buying stocks and sectors that are currently unpopular or underowned by the market, based on the conviction that the market has overreacted negatively and that valuation will eventually normalise. Contra funds are higher-risk and require patience: the fund may underperform significantly while the contrarian thesis is playing out. Indian examples of mutual fund categories with contrarian mandates include SBI Contra Fund and Kotak India EQ Contra Fund.

Convexity

Convexity measures how a bond's duration changes as interest rates move, capturing the curvature in the price-yield relationship that duration alone misses.

A bond with higher convexity gains more in price when yields fall than it loses when yields rise by the same amount. This asymmetry is a desirable property for bondholders. Convexity becomes especially important when comparing bonds with similar durations but different maturities or coupon structures.

Corporate Governance

The framework of rules and practices determining how a company is directed, controlled, and held accountable.

Corporate governance in India is governed by SEBI's LODR regulations, Companies Act 2013, and exchange listing standards. Key governance indicators include board composition and independence, related-party transaction disclosures, auditor quality, promoter pledging levels, executive compensation, and succession planning. Poor corporate governance has historically preceded major stock price declines in Indian markets, making governance assessment a critical part of fundamental analysis.

Coupon

A coupon is the periodic interest payment a bond issuer makes to the bondholder, usually expressed as a percentage of the bond's face value paid annually or semi-annually.

A bond with a face value of INR 1,000 and a 7 percent coupon pays INR 70 per year. The coupon is fixed at issuance and does not change even if market interest rates move, which is why bond prices fluctuate inversely with yields. Zero-coupon bonds make no periodic payments and are issued at a discount.

Covered Call

A covered call is an options strategy where an investor who already holds a stock sells a call option on the same stock to earn premium income, capping potential upside.

The investor collects the call premium upfront. If the stock stays below the strike price at expiry, the premium is kept as additional return on the holding. If the stock rises above the strike, shares are called away at the strike, limiting the gain. Indian traders use covered calls on delivery holdings to reduce the effective cost of ownership over time.

Credit Rating

A credit rating is a standardised opinion from an agency like CRISIL, ICRA, or CARE on a borrower's ability to repay debt, expressed as a letter grade.

AAA is the highest rating, indicating the lowest default risk, while ratings below BBB (investment grade) are considered speculative or junk. Credit ratings drive the interest rate a company pays on its bonds and NCDs. A rating downgrade often triggers sharp selling in a company's bonds and equities simultaneously.

Credit Risk

The risk that a borrower or bond issuer fails to make timely interest payments or repay principal, resulting in loss of income or capital for the lender or bondholder.

For Indian investors, credit risk is most directly relevant when investing in corporate bonds, NCDs (Non-Convertible Debentures), and credit risk mutual funds. A company rated AA by CRISIL carries lower credit risk than one rated BBB -- the credit rating is an agency's assessment of the likelihood of timely repayment. Credit risk also affects equity investors indirectly: a company with high leverage faces credit risk from its own lenders; if it cannot service debt, it may default, triggering insolvency proceedings under IBC that are negative for equity holders. Retail investors in NCDs should be especially alert to credit risk because NCD defaults (IL&FS 2018, DHFL 2019, Cox & Kings) have resulted in complete or partial capital loss for retail investors who held below-investment-grade or misrated instruments.

Credit Spread

The yield premium of a corporate or non-government bond over a comparable government bond of the same maturity.

A credit spread is the additional yield an investor demands for taking on the credit risk of a corporate bond or non-government borrower relative to a risk-free government security (G-Sec) of the same maturity. A wider credit spread signals perceived higher default risk or liquidity risk for that issuer. Credit spreads widen in risk-off environments (financial stress, recessions) and compress when credit risk appetite is high. Indian investors in debt funds are exposed to credit spread movements that affect bond portfolio valuations, particularly for funds with exposure to corporate and NBFC bonds.

Current Account Deficit (CAD)

The current account deficit is the gap by which a country's imports of goods, services and transfers exceed its exports, measured as a share of GDP.

A wide CAD means India is spending more abroad than it earns, which pressures the rupee and must be financed by foreign capital inflows. Because India imports large volumes of crude oil and gold, the CAD widens when oil prices rise, linking it to inflation and the currency.

Current Ratio

The current ratio is a liquidity metric calculated by dividing a company's current assets by its current liabilities, measuring its ability to pay short-term obligations.

A ratio above 1 indicates the company can cover short-term liabilities with short-term assets. Manufacturing and retail companies in India typically target a current ratio of 1.5 to 2. However, very high ratios can indicate idle cash or slow-moving inventory.

Current Ratio

A liquidity metric dividing current assets by current liabilities; a ratio above 1 means the company can cover short-term obligations with near-term assets, signalling short-term solvency.

The current ratio is a basic diagnostic for whether a company can pay its bills over the next twelve months without raising fresh capital or selling long-term assets. A current ratio below 1.0 means current liabilities exceed current assets - not necessarily fatal (large retailers like Dmart run sub-1 ratios because of their negative-working-capital model), but a potential warning sign in manufacturing or capital-goods companies. A very high current ratio (above 3 or 4) is not always positive either: it can indicate poor cash management, excess inventory, or slow receivables collection. The quick ratio, a stricter version that strips out inventory from the numerator, is used alongside the current ratio for sectors where inventory can be illiquid (steel, textiles, specialty chemicals). Indian annual report analysis typically compares the current ratio over three to five years to spot deteriorating short-term health before it becomes a balance-sheet crisis.

Dead Cat Bounce

A brief temporary recovery in a falling stock or market, before the downtrend resumes.

A dead cat bounce is a temporary, unsustained recovery in a stock or index after a sharp decline, followed by the resumption of the downward trend. The term is derived from the idea that 'even a dead cat will bounce if it falls from a great height'. Technical analysts use this pattern to caution that a short-term recovery after a steep fall is not necessarily the beginning of a genuine recovery. Identifying whether a bounce is dead-cat or a real reversal requires looking at volume, fundamental catalysts, and the macro and sector context.

Debenture

A debenture is an unsecured medium-to-long-term debt instrument issued by a company to raise capital, paying a fixed interest rate to investors.

Debentures are backed by the issuer's creditworthiness rather than specific assets, unlike secured bonds. In India, listed debentures are regulated by SEBI and must be rated. They can be convertible (converting into equity after a period) or non-convertible. SEBI mandates a debenture redemption reserve for protection.

Debt-to-Equity Ratio

The debt-to-equity ratio compares a company's total borrowings to its shareholders' equity, indicating how much debt is used to finance assets relative to equity.

A D/E ratio of 1 means the company has equal debt and equity. Capital-intensive sectors like infrastructure and power generation in India often carry higher D/E ratios than technology or FMCG companies. Lenders use this ratio to assess credit risk.

Debt-to-Equity Ratio

A leverage ratio comparing a company's total debt to shareholders' equity, showing how much of the business is financed by creditors versus owners; lower is generally safer.

The debt-to-equity (D/E) ratio is one of the first filters applied by Indian value investors screening for financially sound companies. A D/E of 0.5 means the company has borrowed 50 paise for every rupee of equity capital - a comfortable level for most industries. Capital-intensive sectors such as infrastructure, real estate, and power often carry D/E ratios above 2, which is structurally normal for their business model. However, high D/E companies are more vulnerable during rate-hiking cycles because rising interest costs compress profit margins faster than they do for debt-light peers. Investors tracking promoter pledging alongside a high D/E ratio should be especially cautious: both signals together indicate financial stress that can trigger a sharp de-rating if lenders issue margin calls on pledged shares. Comparing D/E across companies in the same sector is more meaningful than cross-sector comparisons.

Delisting

Delisting is the permanent removal of a company's shares from a stock exchange, either voluntarily by the promoter or mandatorily by SEBI or the exchange.

In a voluntary delisting, the acquirer must conduct a reverse book-building process where public shareholders tender shares and discover an exit price. Mandatory delisting happens when a company fails to meet listing obligations. After delisting, retail shareholders typically lose liquidity for their holdings.

Delivery-Based Trading

Delivery-based trading is buying shares with the intention of holding them in your demat account overnight or longer, taking actual ownership of the stock.

Delivery trades settle under T+1; shares arrive in your demat account the next business day. Gains are taxed as STCG if held under 12 months or LTCG if held over 12 months. Delivery-based volume as a share of total turnover is often read as a gauge of genuine investment demand versus speculation.

Delta

Delta is the rate of change in an option's price for a one-rupee (or one-point) change in the underlying asset's price.

Call options have delta between 0 and 1; put options between -1 and 0. An at-the-money option has a delta of roughly 0.5, meaning it moves about 50 paise for every rupee the underlying moves. Delta also approximates the probability that an option will expire in-the-money.

Delta

An option Greek measuring how much an option's price changes for every one-rupee move in the underlying asset; call deltas range from 0 to 1, put deltas from -1 to 0.

Delta is the most widely watched option Greek in Indian derivatives markets because it directly answers the question: how much money do I make or lose if the stock moves by one rupee? An at-the-money call option has a delta of approximately 0.50, meaning it gains roughly 50 paise for every one-rupee rise in the underlying. A deep in-the-money call approaches delta 1.00 and behaves almost like holding the stock outright. Delta also functions as an approximate probability of expiry in the money - a delta-0.25 call has roughly a 25% chance of expiring in the money, a useful rough filter for option sellers assessing risk. Traders use delta to construct delta-neutral hedges, where the combined delta of a position is close to zero, insulating the portfolio from small directional moves while retaining exposure to volatility.

Demat Account

A demat account holds shares and securities in electronic form, eliminating physical certificates, and is maintained by a depository participant in India.

All Indian investors must hold securities in demat form with either NSDL or CDSL, accessed via a depository participant (DP) such as a bank or broker. Demat accounts store equities, mutual fund units (in statement-of-account form), bonds, and sovereign gold bonds.

Demat Account

An electronic account that holds shares in dematerialised form, replacing physical share certificates.

A Demat (Dematerialised) account is an electronic account with a Depository Participant (DP) that holds shares and securities in digital form. In India, all listed equity shares, bonds, mutual fund units, and government securities are held in demat form. The two depositories are NSDL (National Securities Depository Limited) and CDSL (Central Depository Services Limited). A Demat account is mandatory for trading in Indian stock markets. It works in conjunction with a Trading account (through the broker) and a Bank account (for funds settlement).

Depository (NSDL/CDSL)

NSDL and CDSL are India's two central depositories that hold securities in electronic form and settle trades executed on NSE and BSE respectively.

NSDL (National Securities Depository Limited) was established in 1996, primarily serving NSE. CDSL (Central Depository Services Limited) was set up in 1999 and is more closely associated with BSE. Investors can hold accounts with either depository through any registered DP.

DII (Domestic Institutional Investor)

DIIs are Indian institutional investors, including mutual funds, insurance companies, and pension funds, that invest in domestic capital markets.

In India, LIC, EPFO, and large mutual fund houses are the major DIIs. DII buying often counters FII selling and provides a cushion during foreign outflow-driven corrections. SEBI requires daily disclosure of DII buy-sell activity.

Diluted EPS

Earnings per share calculated as if all convertible securities and options had been converted into equity shares.

Diluted EPS (earnings per share) calculates the per-share profit assuming all potentially dilutive instruments -- stock options, convertible debentures, warrants, ESOPs -- were exercised and converted into equity shares. Basic EPS uses only currently outstanding shares; diluted EPS uses the total shares that would be outstanding after full conversion. Diluted EPS is always lower than (or equal to) basic EPS and gives a more conservative picture of per-share profitability. For companies with large outstanding ESOP grants or convertible debt, the dilution can be material.

Direct Market Access (DMA)

Direct Market Access, or DMA, is a SEBI-regulated broker facility that lets qualified investors place orders directly into the exchange order book through their own systems.

In India, DMA is typically used by institutional investors, hedge funds, and other eligible participants who want lower latency and more control over order execution. It is distinct from algo trading: DMA is the market access mechanism, while algorithmic trading is an order-generation method, and broker-level pre-trade risk checks still apply before orders reach the exchange.

Direct Plan

A direct plan of a mutual fund is bought straight from the fund house with no distributor commission, so it carries a lower expense ratio than the regular plan.

SEBI introduced direct plans in 2013. Because they cut out the distributor's trail commission, their expense ratio is lower, which compounds into a meaningfully higher return over years for the same scheme. The trade-off is that you forgo advice and do the research yourself.

Dividend

A dividend is a cash or stock payment that a company distributes to shareholders from its profits, usually declared as a fixed amount per share.

In India, dividends are taxable in the hands of the investor at their applicable income-tax slab rate. Companies declare interim and final dividends; the record date determines which shareholders are eligible. A high dividend yield can signal value, but may also indicate a lack of reinvestment opportunity.

Dividend Payout Ratio

The dividend payout ratio is the share of a company's net profit paid out to shareholders as dividends, with the rest retained for reinvestment.

A payout ratio of 30% means the company distributes 30 paise of every rupee of profit and reinvests the remaining 70. Mature, cash-rich companies tend to have high payout ratios, while fast-growing firms retain more to fund expansion. It complements dividend yield.

Dividend Yield

Dividend yield is the annual dividend per share expressed as a percentage of the current market price, showing the income return from owning a stock.

A stock paying INR 20 annual dividend at a price of INR 400 has a 5 percent dividend yield. PSU stocks in India often carry higher yields than private-sector growth companies. Dividend yield is used alongside P/E to assess value.

DRHP (Draft Red Herring Prospectus)

The DRHP is the preliminary IPO document filed with SEBI containing company details, financials, risk factors, and intended use of proceeds, pending regulatory approval.

SEBI reviews the DRHP and can raise observations; the company then files the final Red Herring Prospectus (RHP) with confirmed price band and dates. The DRHP is publicly available on SEBI's website and is essential reading for informed IPO participation.

Duration

Duration measures how sensitive a bond's price is to a change in interest rates, expressed in years, with longer duration meaning more price volatility.

Modified duration tells you roughly how much a bond's price changes for every 1 percentage point shift in yield. A bond with a modified duration of 5 would lose about 5 percent in price if yields rise by 1 percentage point. Long-duration debt funds in India carry more interest-rate risk than short-duration ones.

Earnings Call

An earnings call is a quarterly conference call in which a listed company's management presents financial results and discusses business outlook with analysts and institutional investors.

Earnings calls are held within a few days of the quarterly results announcement. Management typically includes the CFO, CEO and investor relations team. Analysts ask questions on margins, guidance, working capital, order book and strategic direction. Transcripts are usually published on the stock exchange or company website within a few days. Retail investors can read transcripts to understand management's own assessment of the business, which is often more informative than the bare financial numbers.

Earnings Yield

Earnings yield is the inverse of the P/E ratio, the annual earnings a company produces as a percentage of its share price, so a P/E of 20 is a 5% earnings yield.

Earnings yield is the like-for-like number to compare against a bond yield, because both measure annual return per rupee invested. When the equity earnings yield is well above the 10-year G-sec yield, stocks look relatively cheap against the risk-free alternative.

EBITDA

EBITDA is Earnings Before Interest, Taxes, Depreciation, and Amortisation, a measure of a company's core operating profitability before capital structure and accounting choices.

Indian analysts use EBITDA to compare companies across sectors and capital structures. EBITDA margin, expressed as EBITDA divided by revenue, shows operating efficiency. It is not a cash-flow measure and does not account for debt servicing.

Economic Moat

A durable competitive advantage that protects a company's profits and market share from rivals over long periods, named after the water-filled ditch that made medieval castles hard to storm.

The economic moat concept was popularised by Warren Buffett to describe businesses that earn above-average returns on capital for extended periods because rivals cannot easily replicate their edge. In the Indian market, moat sources include: brand power (Asian Paints, Pidilite - products that have become category default choices), switching costs (BSE, CDSL - where moving your entire demat holding is operationally painful), cost advantages at scale (Titan in jewellery retail), and network effects (NSE, IndiaMART - the more participants join, the more valuable the platform becomes). A moat is not permanent: regulation, technology disruption, or a sufficiently capitalised new entrant can erode it. Investors paying a premium P/E for a moat stock are effectively betting that the moat holds long enough to justify the valuation premium. Moat durability analysis is therefore as important as the current moat score.

ELSS (Equity Linked Savings Scheme)

ELSS is a tax-saving mutual fund that invests primarily in equities and offers a deduction of up to INR 1.5 lakh per year under Section 80C, with a mandatory 3-year lock-in.

ELSS has the shortest lock-in period among all 80C instruments, including PPF and NSC. Units bought via SIP in ELSS each have their own 3-year lock-in starting from the purchase date. Returns are subject to long-term capital gains tax above INR 1.25 lakh.

Enterprise Value (EV)

Enterprise value is a company's market capitalisation plus its net debt, representing the total price to acquire the whole business including its borrowings.

EV is often a fairer measure than market cap alone because it accounts for debt and cash. The EV-to-EBITDA multiple is widely used to compare companies with different debt loads, since it is capital-structure neutral, unlike the P/E ratio.

Enterprise Value (EV)

Enterprise value is the total economic value of a company, calculated as market cap plus net debt, representing the theoretical price an acquirer would pay to own the business outright.

EV is computed as market capitalisation plus total debt minus cash and cash equivalents. The EV-to-EBITDA multiple is widely used to compare companies regardless of capital structure or tax rates, making cross-sector and cross-border comparisons more meaningful. A lower EV/EBITDA relative to sector peers can suggest undervaluation, though capital-intensity differences must be accounted for.

EPS (Earnings Per Share)

EPS is a company's net profit divided by its total outstanding shares, representing the earnings attributable to each share of the company.

Diluted EPS accounts for potentially dilutive instruments like ESOPs and convertible bonds. Indian quarterly results report basic and diluted EPS. Rising EPS over successive quarters is a primary indicator of business health. P/E is calculated by dividing price by EPS.

ESOP (Employee Stock Option Plan)

An ESOP grants employees the right to buy company shares at a predetermined price (exercise price) after a vesting period, as a form of compensation.

ESOPs in Indian listed companies are governed by SEBI's ESOP guidelines. Employees pay tax at exercise (as perquisite income) and again at sale (as capital gains). Large ESOP grants can dilute existing shareholders over time, which is reflected in diluted EPS.

ETF (Exchange Traded Fund)

An ETF is a fund that tracks an index or basket of assets and is listed on a stock exchange, allowing it to be bought and sold at live market prices like a stock.

In India, Nifty 50 and Sensex ETFs are the most popular, offered by fund houses like NIPPON, SBI, and HDFC. ETFs typically have lower expense ratios than actively managed funds. Unlike mutual funds, ETF units trade at market price, which can deviate slightly from the NAV.

Ex-Date

The ex-date is the cutoff date from which a stock trades without the right to receive an upcoming dividend, bonus, or rights issue.

Under India's T+1 settlement cycle, you must own the shares by end of the day before the ex-date to be eligible for the corporate action. On the ex-date itself, the stock price is typically adjusted downward by the dividend or bonus ratio. The record date usually falls one day after the ex-date.

Exit Load

An exit load is a fee charged by a mutual fund when an investor redeems units before a specified holding period, expressed as a percentage of the redemption value.

Most equity mutual funds in India charge 1 percent exit load if units are redeemed within 1 year. Liquid funds often have a tiered exit load for the first 7 days. ELSS has a lock-in of 3 years, so no exit load is applicable. Exit load is distinct from the expense ratio.

Expense Ratio

The expense ratio is the annual fee that a mutual fund deducts from the scheme's assets to cover management, administration, and distribution costs, expressed as a percentage of AUM.

SEBI caps expense ratios for equity mutual funds on a slab basis. Direct plans have lower expense ratios than regular plans because they exclude distributor commissions. Even a 0.5 percent difference in expense ratio compounds significantly over a 10- or 20-year horizon.

Expense Ratio

The annual fee charged by a mutual fund as a percentage of assets under management, covering fund management, administration, and distribution costs; directly reduces investor returns.

The expense ratio is deducted daily from the NAV of a mutual fund, making it invisible on a single day's statement but significantly impactful over long investment horizons. SEBI caps expense ratios in India on a sliding scale: large-cap equity funds can charge a maximum of 1.05% for direct plans (lower for larger AUM slabs), while small-cap and thematic funds may charge up to 1.35%. The difference between a regular plan and a direct plan is primarily the distributor commission embedded in the regular plan's expense ratio - typically 0.5 to 1 percentage point higher, which on a 20-year SIP can translate to lakhs of rupees of compounding lost to fees. Index funds and ETFs carry significantly lower expense ratios (often 0.05 to 0.20%), reflecting the absence of active stock-picking costs. When comparing two funds with similar risk and return profiles, the lower-expense-ratio option has a structural return advantage that compounds over time.

Expiry

Expiry is the last trading day for a futures or options contract, after which all open positions are settled or expire worthless.

In India, monthly Nifty and Bank Nifty contracts expire on the last Thursday of the month. Weekly options expire on Thursday of each week for major indices. Stock futures and options expire monthly. After expiry, all unexercised out-of-the-money options become worthless.

Exposure Margin

Exposure margin is an additional margin collected by exchanges over and above SPAN margin to cover residual risk in derivatives positions.

In India, total margin for derivatives is SPAN margin plus exposure margin. Exposure margin varies by segment and is typically 2 to 3 percent of contract value for index futures and higher for stock futures. Failure to maintain required margins triggers margin calls and position squaring.

External Commercial Borrowing (ECB)

An ECB is a loan raised by an Indian company from foreign lenders, including banks, bond markets, and export credit agencies, under a framework governed by the RBI.

ECBs allow Indian corporates to access cheaper or longer-tenor foreign capital than is available domestically. The RBI regulates ECBs through an Automatic and Approval Route framework. Borrowers take on currency risk because repayments must be made in foreign currency, so hedging is typically required.

52-Week High

A 52-week high is the highest price at which a stock has traded over the past year, a widely watched reference for momentum and strength.

Stocks making new 52-week highs are often screened by momentum investors, while those near 52-week lows attract value hunters and bargain seekers. The level is a psychological marker that can act as support or resistance once breached.

52-Week Low

A 52-week low is the lowest price at which a stock has traded over the past year, watched by value investors and as a sign of weakness.

A stock repeatedly hitting fresh 52-week lows signals persistent weakness, which can be a falling-knife trap or a value opportunity depending on the cause. Screening for 52-week lows is a common starting point for contrarian and deep-value strategies.

F&O Ban Period

An F&O ban restricts fresh derivatives positions in a stock when aggregate open interest crosses the exchange-set market-wide position limit, forcing existing holders to only reduce their exposure.

When a stock is placed under the F&O ban, fresh futures and options positions are prohibited because total open interest has crossed the permitted market-wide position limit. Traders can still reduce or square off existing positions but cannot add new exposure. The ban remains in force until open interest falls below the specified threshold and the exchange removes the restriction.

Face Value

Face value (also called par value) is the nominal value of a share as stated in the company's memorandum of association, typically INR 1 or INR 10.

Face value is the base for calculating dividends per share and stock split ratios. Most Indian companies have a face value of INR 1 or INR 2 after splitting. It does not reflect market price or book value. Bonus shares are issued at face value charged to reserves.

Face Value

The nominal or par value of a share as stated in the company's memorandum, typically Rs. 1, Rs. 2, or Rs. 10.

Face value (also called par value or nominal value) is the value printed on a share certificate as specified in the company's Memorandum of Association. It is typically Rs. 1, Rs. 2, Rs. 5, or Rs. 10 for Indian listed companies. Face value has little practical relevance to market price: a stock trading at Rs. 5,000 may have a face value of Rs. 1. Face value matters for: calculating share premium in new issues (issue price minus face value = share premium), stock splits (face value is halved in a 2:1 split), and dividend calculations (dividend declared as percentage of face value in many cases).

FCCB (Foreign Currency Convertible Bond)

An FCCB is a bond issued by an Indian company in a foreign currency that can be converted into equity shares at a pre-agreed price after a set period.

FCCBs let Indian companies raise cheap offshore debt while giving foreign investors an equity upside. If the stock price rises above the conversion price, investors convert to equity. If it does not, they hold the bond to maturity and receive interest and principal in foreign currency, exposing the issuer to currency risk.

Fibonacci Retracement

Fibonacci retracement is a technical analysis tool that marks potential support and resistance zones using key ratios drawn between a significant price high and low.

These levels are derived from the Fibonacci sequence, with traders commonly watching ratios such as 23.6 percent, 38.2 percent, 50 percent, 61.8 percent, and 78.6 percent. In Indian markets, Fibonacci retracement is widely applied on Nifty and individual stock charts, and its usefulness is partly self-fulfilling because many participants track the same zones simultaneously.

FII (Foreign Institutional Investor)

FIIs (now called FPIs under current SEBI terminology) are foreign portfolio investors registered with SEBI who invest in Indian equities, bonds, and derivatives.

Foreign portfolio inflows and outflows have a significant impact on Indian markets, especially mid- and small-caps. Net FII/FPI buying or selling data is published daily by NSE, BSE, and SEBI. Sustained FII selling often leads to rupee depreciation and index corrections.

Fiscal Deficit

The fiscal deficit is the gap between the government's total spending and its total revenue in a year, usually expressed as a percentage of GDP.

A higher fiscal deficit means the government must borrow more, which can push up bond yields and crowd out private borrowing. Markets watch the Union Budget's fiscal-deficit target closely because government borrowing competes with companies for capital.

Floor Price

The minimum price at which a company can offer shares in a rights issue, QIP, or a delisting offer.

A floor price is the regulatory minimum price for share issuances or delisting offers. In the context of QIPs and preferential allotments, SEBI mandates that the issue price cannot be below a floor calculated from the preceding two-week average market price. For delisting, the acquirer must offer at least the floor price to public shareholders. For open offers (triggered by acquisitions above the 25 percent threshold), SEBI specifies a floor price based on market prices and other parameters. The floor price protects public shareholders from being bought out at artificially depressed valuations.

Foreign Exchange Reserves

Forex reserves are the foreign currencies, gold and other assets the RBI holds, used to manage the rupee and meet external payment needs.

India's reserves are among the largest in the world and act as a war chest. The RBI sells dollars from reserves to slow a sharp rupee fall and buys to curb excessive strength. A healthy reserve cover reassures foreign investors about the country's external stability.

FPO (Follow-on Public Offer)

An FPO is a public offering of shares by an already-listed company to raise additional capital from the general public, either as fresh shares or as an offer for sale.

Unlike an IPO, an FPO is available for a company with an existing market price, giving investors a reference point. FPOs in India are governed by SEBI's ICDR Regulations. Dilutive FPOs increase share count and can pressure EPS unless the capital is deployed productively.

Free Cash Flow (FCF)

Free cash flow is the cash a company generates from operations after subtracting capital expenditure, the real cash left for dividends, debt repayment and growth.

FCF is harder to manipulate than reported profit, which makes it a favourite of quality-focused investors. A company that consistently produces strong free cash flow can fund buybacks, dividends and expansion without raising debt or diluting shareholders.

Free Cash Flow (FCF)

Free cash flow is the cash a company generates from operations after deducting capital expenditure, representing funds available to repay debt, pay dividends, or fund acquisitions.

FCF is calculated by subtracting capex from operating cash flow as reported in the cash flow statement. A company with consistently growing FCF is typically more financially robust than one that reports high net profit but converts little of it to cash, which can happen in businesses with high working capital needs or aggressive revenue recognition. Indian IT exporters tend to generate strong FCF because their asset base is light.

Free Float

Free float is the proportion of a listed company's shares that are available for public trading, excluding shares held by promoters, governments, and strategic investors.

Nifty 50 and other NSE indices weight constituents by free-float market cap, not total market cap. A low free-float stock can be more volatile because a smaller number of shares chase the same demand. SEBI requires a minimum 25 percent public shareholding for most listed companies.

Freeze Quantity

Freeze quantity is the maximum number of shares or units that can be placed in a single order for a given stock, above which exchange approval is required.

NSE and BSE set freeze quantities for each scrip based on liquidity and market lot. Orders exceeding the freeze quantity must be split across multiple orders or submitted via the block deal window. Freeze quantities are particularly relevant for low-liquidity stocks.

Fund of Funds (FoF)

A mutual fund that invests in other mutual funds rather than directly in stocks or bonds.

A Fund of Funds (FoF) is a mutual fund scheme that invests its corpus in units of other mutual fund schemes rather than directly in equity or debt instruments. Indian FoFs are used for international equity exposure (investing in foreign ETFs or funds through the RBI's liberalised remittance scheme for mutual funds), multi-asset allocation (investing in a mix of domestic equity, debt, and gold fund units), and tactical allocation strategies. FoFs carry an additional expense ratio layer on top of the underlying funds' charges.

Gamma

Gamma measures the rate of change in an option's delta for a one-unit move in the underlying asset, indicating how quickly delta accelerates.

High gamma means a small move in the underlying produces a large change in delta. At-the-money options near expiry have the highest gamma, making them sensitive to last-minute price swings. Gamma risk is a key concern for options sellers (writers) in Indian markets.

Gamma

The option Greek measuring how much delta itself changes for every one-rupee move in the underlying; high gamma means the option's delta - and therefore its price sensitivity - shifts rapidly.

Gamma is the acceleration term in options: delta tells you speed, gamma tells you how fast that speed is changing. An at-the-money option has the highest gamma, which means its delta moves most rapidly as the underlying moves - amplifying gains for buyers and losses for sellers when the market makes a sharp move. Deep in-the-money or deep out-of-the-money options have near-zero gamma because their deltas (already near 1 or near 0) barely change with small underlying moves. Gamma risk becomes acute for option sellers in the final days before expiry: a short straddle that is comfortably delta-neutral can become a large directional bet within hours if the underlying makes a strong move, because gamma causes the delta to shift violently. Institutions managing large derivative books run gamma-neutral portfolios alongside delta-neutral ones to control this second-order exposure.

Gap Up and Gap Down

A gap up is when a stock opens significantly higher than its previous close, and a gap down when it opens significantly lower, leaving a gap on the chart.

Gaps usually form on overnight news, results or global cues that hit when the market is closed. Traders watch whether a gap fills, meaning price returns to the prior close, or holds, which can signal the strength of the move that created it.

GDP (Gross Domestic Product)

GDP is the total value of all final goods and services an economy produces in a period, the broadest single measure of economic size and growth.

Real GDP strips out inflation to show genuine growth, while nominal GDP includes price rises. Over the long run corporate earnings track the economy, but the stock market is forward-looking and often moves ahead of and out of step with the lagging GDP data.

GMP (Grey Market Premium)

GMP is the premium at which IPO shares are bought and sold in an unofficial grey market before the stock is officially listed on the exchange.

GMP is not regulated by SEBI and is purely speculative; it is used as an informal gauge of listing demand. A high GMP suggests strong subscription and expected listing gains, but it is not a guaranteed indicator. Relying solely on GMP for IPO investment decisions is risky.

Golden Cross

A golden cross is a technical signal where a shorter-term moving average crosses above a longer-term moving average, widely interpreted as a bullish trend change.

The most-watched version is the 50-day simple moving average crossing above the 200-day. Technical traders treat it as confirmation that the medium-term trend has turned upward. Its opposite, when the shorter average crosses below the longer, is called a death cross and is read as bearish.

Government Security (G-Sec)

A G-sec is a debt instrument issued by the central or state government, considered the safest rupee investment because the government is assumed not to default.

The 10-year G-sec yield is India's benchmark risk-free rate, against which corporate bonds, loans and even equities are priced. G-secs are held by banks to meet their SLR requirement and are increasingly accessible to retail investors via the RBI Retail Direct platform.

Greenshoe Option

A greenshoe option lets an IPO's underwriters issue extra shares, typically up to 15% of the offer, to stabilise the price if demand is strong after listing.

Formally an over-allotment option, the greenshoe is a price-stabilisation tool. If the stock trades above the issue price, the extra shares meet demand, and if it falls, the stabilising agent buys back shares to support it. It cushions early post-listing volatility.

Grey Market Premium (GMP)

An unofficial, informal pre-listing price for IPO shares traded outside regulated exchanges, used as an informal barometer of IPO demand.

The Grey Market Premium (GMP) is the premium at which IPO shares are traded in the unofficial grey market before the stock is listed on NSE or BSE. This informal market operates outside SEBI's regulated framework. The GMP is expressed as a premium or discount to the IPO issue price. For example, if an IPO is priced at Rs. 300 and the GMP is Rs. 60, the grey market expects a listing around Rs. 360 (a 20 percent premium). GMP is driven by IPO subscription demand (heavily oversubscribed IPOs typically carry high GMP), market conditions, and speculative demand. GMP is frequently cited in financial media as an indicator of likely listing price, but it is not legally binding, can be manipulated, and has historically diverged from actual listing prices, especially in volatile markets. SEBI does not regulate or recognise grey market transactions; retail investors should treat GMP as a sentiment indicator only, not a pricing guarantee.

Gross Margin

Gross margin is revenue minus the direct cost of goods sold, divided by revenue, showing how much a company keeps after the basic cost of making its product.

Gross margin sits above operating and net margin in the profit cascade. A high and stable gross margin often signals pricing power or a strong brand, while a thin or shrinking gross margin points to a commodity business with little control over its selling price.

Gross Value Added (GVA)

GVA measures the value of goods and services produced in an economy from the supply side, before adjusting for taxes and subsidies to arrive at GDP.

GVA is GDP viewed from the production angle. Analysts watch sector-wise GVA, for agriculture, industry and services, to see which parts of the economy are driving growth. GDP equals GVA plus product taxes minus subsidies.

Growth Trap

Overpaying for a company's growth such that even good execution fails to generate investment returns.

A growth trap occurs when an investor pays such a high valuation for a high-growth company that even if the company executes its growth plan successfully, the stock delivers poor returns because the growth was already priced in at the time of purchase. It is the primary risk of growth investing: the valuation paid at entry is as important as the quality of the business. High-P/E growth stocks that see any earnings disappointment or multiple compression can deliver poor returns despite underlying business growth, which is why the entry price -- not just the growth rate -- determines investor returns.

GSM (Graded Surveillance Measure)

GSM is a SEBI and exchange surveillance framework that flags fundamentally weak or speculative stocks, restricting their trading to once a week with 100 percent upfront margin.

Stocks in higher GSM stages (Stage IV, V, VI) can only be traded once a week, effectively eliminating intraday activity and leverage. SEBI uses GSM to deter speculative activity in penny stocks. Being placed in GSM often leads to sharp price corrections as traders exit.

GTT (Good Till Triggered)

A GTT order is a conditional order that stays active on the broker's system and is triggered and placed on the exchange only when the stock price hits a preset level.

GTT orders in India are offered by brokers like Zerodha and are valid for up to one year. They are useful for setting target or stop-loss levels without constant monitoring. A GTT is not an exchange order until the trigger price is hit; the actual fill is then at market or limit price.

Haircut

A haircut is the percentage by which the value of a security pledged as collateral is reduced, to protect the lender against a fall in its price.

When you pledge shares for margin, the broker applies a haircut, so 100 rupees of stock might give only 80 rupees of usable margin. Higher-volatility or lower-quality securities attract larger haircuts. The term also applies to losses creditors accept in a debt restructuring.

Hedging

Hedging is taking an offsetting position, usually in derivatives, to reduce the risk of an adverse price move in an asset you already hold.

An investor holding a stock portfolio might buy Nifty put options or short futures to protect against a market fall, sacrificing some upside for downside insurance. Hedging reduces risk and cost together; it is protection, not a profit-seeking bet.

HNI (High Net-worth Individual) in IPO

In an IPO context, HNIs (also called Non-Institutional Investors) are applicants bidding for shares worth more than INR 2 lakh, qualifying for a reserved allocation quota.

SEBI mandates a minimum 15 percent HNI reservation in the main-board IPO allocation. HNI applications above INR 10 lakh (sNII) and below INR 10 lakh (bNII) are further subdivided since 2022. HNIs often use leverage (IPO financing) to maximise allotment chances when oversubscription is high.

IBC

The Insolvency and Bankruptcy Code is India's unified insolvency framework enacted in 2016 that time-bounds the resolution of financially distressed companies through a market-based process.

Under the IBC, a creditor or the distressed company itself can file before the National Company Law Tribunal. A 180-day resolution period (extendable to 330 days) commences, during which a resolution professional manages the company and creditors vote on resolution plans. If no plan is approved, the company goes into liquidation. The IBC replaced multiple overlapping laws and is credited with improving India's credit culture by giving lenders a credible recovery threat. Investors track IBC proceedings for distressed-asset opportunities and to assess credit risk in lending-heavy sectors.

Iceberg Order

An iceberg order shows only a small disclosed quantity on the exchange order book while hiding the much larger total order size, executed in multiple tranches.

Large institutional buyers use iceberg orders to avoid signalling the full size of their trade, which would move the market against them. On the NSE, iceberg orders are supported in the cash and F&O segments. Only the peak (disclosed) quantity appears in the market depth at any time.

Impact Cost

Impact cost is the percentage difference between the actual executed price and the ideal price when a large order moves the market, used by NSE as a liquidity metric for index inclusion.

A lower impact cost means higher liquidity. NSE uses a specific impact cost threshold (typically below 0.5 percent on a notional INR 10 crore order) as an eligibility criterion for stocks to enter the Nifty 50 index. High impact cost translates to higher execution slippage for institutional orders.

Implied Volatility

Implied volatility is the market's forward-looking expectation of how much an underlying asset will move, derived by working backwards from observed option premiums.

High implied volatility inflates option premiums, which benefits sellers and hurts buyers. India VIX is essentially the implied volatility of Nifty 50 options. Implied volatility is not the same as historical volatility; it reflects future fear or greed baked into current prices.

In-the-Money (ITM)

An option is in-the-money when exercising it immediately would produce a profit: the underlying is above the call strike or below the put strike.

An ITM call has positive intrinsic value (spot minus strike for a call). Deep ITM options behave more like the underlying because their delta approaches 1 for calls and -1 for puts. They are more expensive than ATM or OTM options because they already carry intrinsic value on top of time value.

Index Fund

An index fund passively replicates the portfolio of a benchmark index such as Nifty 50 or Sensex, aiming to match the index return rather than beat it.

Index funds in India typically have lower expense ratios than active funds. Tracking error, the deviation between the fund's return and the index return, is the primary quality metric. SEBI requires index funds to invest at least 95 percent in index constituents.

Index Futures

An exchange-traded contract obligating the buyer and seller to transact the index value at a specified future date; used for directional bets, hedging equity portfolios, and arbitrage.

In India, Nifty 50 futures and BankNifty futures are the most actively traded index futures contracts on NSE. The futures price reflects the current index level plus the cost of carry (risk-free rate minus dividend yield), so near-month futures typically trade at a small premium to spot. When futures trade above this theoretical fair value, they are said to be at a premium (positive basis); when below, at a discount. A portfolio of large-cap equities can be hedged by selling an equivalent notional value in Nifty futures: if the portfolio falls, the short futures position gains, offsetting part of the loss. Index futures settle in cash on the last Thursday of the expiry month (for monthly contracts) against the final settlement price determined by NSE.

Index Reconstitution

Index reconstitution is the periodic process by which an index provider adds, removes or reweights stocks in an index based on updated eligibility criteria such as market capitalisation, liquidity and free float.

Nifty 50, Nifty Next 50 and other NSE indices are reconstituted semi-annually in March and September. Stocks added to a major index typically see a burst of buying from index funds and ETFs that must hold the new constituents; stocks removed face selling pressure for the same reason. Anticipating reconstitution changes is a standard strategy in quantitative and event-driven investing. SEBI and NSE publish the methodology and the cutoff dates in advance.

India VIX

India VIX is the NSE's volatility index, measuring market expectations of near-term (30-day) volatility derived from Nifty 50 options prices.

A high India VIX (above 20) indicates greater uncertainty and fear; a low VIX (below 13) signals complacency. India VIX typically spikes during elections, global crises, and RBI policy events. Options sellers benefit from high VIX through elevated premiums, but face higher risk.

India VIX

India's volatility index, derived from Nifty 50 option prices, measuring the market's expectation of 30-day Nifty volatility; a high reading signals fear, a low reading signals complacency.

India VIX (Volatility Index) is computed by NSE using a methodology similar to the CBOE's VIX, taking the implied volatility embedded in near-term and next-term Nifty 50 options. A reading above 20 is generally considered elevated and associated with market uncertainty or a correction phase. A reading below 12 suggests low fear and often precedes option premium compression. Traders use India VIX to assess whether options are cheap or expensive relative to historical volatility. When VIX spikes, options buyers benefit from vega gains regardless of the directional move.

Inflation

Inflation is the rate at which the general price level rises over time, eroding the purchasing power of money, measured in India mainly by the CPI.

Moderate, stable inflation near the RBI's 4% target is healthy, but high inflation erodes real returns and squeezes corporate margins, and it triggers rate hikes that pressure equity valuations. Investors hold equities partly because they have historically outpaced inflation.

Inflation Targeting

Inflation targeting is the RBI's formal monetary policy framework that commits it to maintaining CPI inflation at 4 percent within a 2 to 6 percent tolerance band.

The framework was adopted under the amended RBI Act in 2016 and was renewed for another 5-year cycle from April 2026 to March 2031. If inflation breaches the band for three consecutive quarters, the MPC must write to the government explaining why. This anchors long-run inflation expectations, which directly affects bond yields and equity discount rates.

Information Ratio

The information ratio measures a fund manager's active return over the benchmark per unit of active risk (tracking error), gauging the consistency of alpha generation.

A high information ratio means the manager is producing consistent alpha without taking large active bets. It combines the Sharpe ratio's logic with a benchmark-relative view. A ratio above 0.5 is generally considered good, though thresholds vary by mandate.

Insider Trading

Insider trading is the buying or selling of a listed company's securities based on material, non-public information, which is illegal under SEBI regulations.

SEBI's Prohibition of Insider Trading Regulations 2015 define insiders as directors, employees, and any person with access to unpublished price-sensitive information (UPSI). Companies must maintain structured disclosure windows and trading restriction periods around financial results. Violations can attract fines, disgorgement, and imprisonment.

Insider Trading

Buying or selling shares using material non-public information, which is illegal under SEBI's insider trading regulations.

Insider trading refers to trading in the securities of a company by a person who has access to unpublished price-sensitive information (UPSI) not available to the public. SEBI's Prohibition of Insider Trading Regulations define insiders broadly to include promoters, directors, key managerial persons, and any connected persons. UPSI includes financial results before announcement, merger plans, dividend decisions, and other material events. Trading based on UPSI or communicating it to others who then trade is a criminal and civil offence.

Interest Rate Risk

The risk that rising interest rates reduce the value of fixed-income instruments and reprice equity valuations, particularly for debt-heavy companies and long-duration bond holders.

Interest rate risk manifests in two primary ways for Indian investors. First, in bond portfolios: when market interest rates rise, existing bonds paying a fixed coupon become less attractive, causing their prices to fall (price and yield move inversely). Longer-duration bonds (more years to maturity) fall more sharply in price for the same rate rise. Second, in equity markets: rising rates increase the discount rate applied to future earnings, reducing the present value of growth stocks with earnings far in the future; capital-intensive companies with high debt see interest costs rise directly. RBI's rate cycle is therefore a key variable for debt fund and equity investors alike, especially during rate hiking cycles.

Internal Rate of Return (IRR)

The discount rate that makes the present value of an investment's expected cash flows equal to its initial cost.

IRR (Internal Rate of Return) is the annualised percentage return at which the net present value of all cash flows from an investment (both inflows and outflows over time) equals zero. In simpler terms, it is the compounded annual return on an investment. IRR is widely used in real estate, private equity, infrastructure, and project finance to evaluate expected returns. For public equity, IRR is essentially equivalent to CAGR when cash flows are simple (buy at cost, sell at terminal value). A higher IRR relative to the cost of capital indicates value creation.

Intraday Trading

Intraday trading is buying and selling a stock within the same trading session so that no open position is carried overnight, with trades settled on a net basis.

Intraday positions must be squared off before the market close or the broker auto-squares them, often at a penalty. Intraday trades attract STT at a lower rate than delivery trades, but gains are taxed as business income at the investor's slab rate. Leverage (MIS margin) is available for intraday, but not for delivery.

Intrinsic Value (Options)

Intrinsic value of an option is the amount by which it is in-the-money, calculated as the difference between the underlying's market price and the option's strike price.

A Nifty 22,000 call option has intrinsic value only if Nifty is above 22,000: the intrinsic value equals spot minus strike. Out-of-the-money options have zero intrinsic value. Total option premium equals intrinsic value plus time value.

InvIT

An Infrastructure Investment Trust is a SEBI-regulated trust that pools investor capital to own and operate infrastructure assets such as roads, power transmission lines and pipelines, distributing most of the income as dividends.

InvITs were introduced in India in 2014 to allow retail and institutional investors to participate in infrastructure assets without direct ownership. They must distribute at least 90 percent of their net distributable cash flows. Major listed InvITs include IRB InvIT (roads), PowerGrid InvIT (transmission lines) and India Grid Trust. Unlike REITs which focus on real estate, InvITs cover hard infrastructure. Yields are typically higher than bonds but carry project and regulatory risk.

IPO (Initial Public Offering)

An IPO is the process through which a private company offers its shares to the public for the first time and gets listed on a stock exchange.

In India, main-board IPOs are governed by SEBI's ICDR Regulations. The company files a DRHP, sets a price band, opens the subscription window for 3 days, and then lists on NSE or BSE. Retail investors apply via ASBA or UPI mandates and must wait for allotment.

ISIN

An International Securities Identification Number is the 12-character alphanumeric code that uniquely identifies a security globally; Indian securities use the prefix IN followed by ten characters.

Every listed stock, bond and mutual fund unit in India has a unique ISIN assigned by NSDL. The format for Indian securities is IN followed by a letter (E for equity, F for debt), the company code and a check digit. ISINs are used in trade settlement instructions, depository systems and international transactions. When looking up a stock on a broker platform or exchange, the ISIN provides an unambiguous identifier that avoids confusion between companies with similar names or ticker changes.

KYC (Know Your Customer)

KYC, or Know Your Customer, is the mandatory identity and address verification process required in India for opening and operating demat, trading, mutual fund, and bank accounts.

In India, KYC is mandated under SEBI and RBI regulations before investors can open any financial relationship with a broker, fund house, or bank. It typically requires documents such as PAN and Aadhaar, with verification through in-person verification or video KYC depending on the intermediary. KYC records are centralised through SEBI-registered KYC Registration Agencies, and investors may be asked for re-KYC when regulations change or personal details become outdated.

Limit Order

A limit order is an instruction to buy or sell a security at a specified price or better, ensuring you control the price but not guaranteeing execution.

Limit orders sit in the exchange's order book until matched by a counterparty or cancelled. A buy limit below the current price waits for the price to fall; a sell limit above current price waits for the price to rise. Limit orders are preferable in thin or volatile markets to avoid adverse fills.

Limit Order

An order to buy or sell a security at a specified price or better, which executes only if the market reaches that price.

A limit order is an instruction to buy or sell a security at a specific price or better. A buy limit order specifies the maximum price you are willing to pay; the order will execute only at that price or lower. A sell limit order specifies the minimum price you are willing to accept; the order will execute only at that price or higher. Limit orders give price control but no guarantee of execution: if the market never reaches your specified price, the order remains unfilled. This is different from a market order (which executes immediately at the best available current price, guaranteeing execution but not price). On Indian exchanges (NSE, BSE), limit orders are the most common order type for equity delivery trading. For F&O, limit orders are used to avoid unfavourable fills in illiquid option strikes. A day limit order expires at the end of the trading session if unfilled; a GTC (Good Till Cancelled) order remains live until executed or manually cancelled, subject to exchange-specific rules on maximum order duration.

Liquid Fund

A liquid fund is a SEBI-defined debt mutual fund that invests in money market instruments and debt securities with residual maturity of up to 91 days.

Liquid funds are commonly used by Indian investors to park short-term surplus, offering relatively low interest rate and credit risk compared with longer-duration debt funds. They carry a graded exit load for the first 7 days, support quick redemption on a T+1 or same-day basis in some cases, and differ from overnight funds in that they can hold instruments with maturity of up to 91 days rather than just overnight paper.

Liquidity

Liquidity is how easily an asset can be bought or sold without moving its price, with high-liquidity stocks trading in large volumes at tight spreads.

A liquid stock like a Nifty 50 constituent can absorb large orders with minimal price impact, while an illiquid small cap can swing sharply on a modest trade. Liquidity also describes the cash available in the banking system, which the RBI manages through its policy tools.

Listing Gain

Listing gain is the percentage appreciation in an IPO stock's price on its first day of trading on the exchange, relative to the issue price.

A high GMP before listing often predicts strong listing gains but is not guaranteed. In India, stocks that list at a premium frequently see selling pressure from allottees booking profits on listing day. Tax treatment of listing gains follows short-term capital gains rules since the holding period is under 1 year.

Listing Gain

The percentage increase in a stock's price on its IPO listing day compared to the issue price.

Listing gain is the return earned by an IPO investor who buys at the issue price and sells immediately on the listing day at the opening price or during the first trading session. Listing gains are driven by IPO subscription demand (heavily oversubscribed IPOs with strong grey market premiums typically list higher) and overall market conditions. Listing gains are short-term capital gains if held less than 12 months and taxed accordingly. The IPO grey market premium (GMP) is an unofficial pre-listing indicator of expected listing price in the unofficial market.

Lock-in Period

A lock-in period is a span during which an investor cannot sell or redeem an investment, applying to ELSS funds, anchor IPO shares and promoter holdings.

An ELSS tax-saving fund has a three-year lock-in, the shortest among Section 80C options. IPO anchor investors face a lock-in on their allotment, and promoters have minimum lock-ins on their post-IPO holdings under SEBI rules, which protects other shareholders.

LODR (Listing Obligations and Disclosure Requirements)

SEBI's LODR Regulations set the continuous disclosure and governance obligations that listed Indian companies must fulfil to their shareholders and the exchanges.

LODR mandates quarterly financial results within 45 days, related-party transaction disclosures, board composition requirements, and prompt reporting of material events. Non-compliance attracts fines from NSE and BSE and can trigger regulatory action by SEBI.

Long Buildup

A long buildup in derivatives is when price rises along with open interest, signalling that fresh buyers are entering and backing the up-move with new money.

It is generally read as the strongest bullish combination because new long positions, not just short covering, are driving the move. The opposite, a short buildup, is price falling on rising open interest, which is bearish as fresh sellers lean in.

Long Unwinding

Long unwinding is when price falls along with falling open interest, meaning existing buyers are closing their positions and booking out of the trade.

It is the gentler of the bearish signals: holders are exiting rather than fresh sellers piling in, so the down-move often lacks the conviction of a short buildup. Reading whether weakness is long unwinding or a short buildup helps gauge how sustained a fall may be.

Lot Size

Lot size in the F&O segment is the minimum number of units in one futures or options contract as fixed by the exchange for a given underlying.

Nifty 50 has a lot size of 75 units per contract. SEBI periodically revises lot sizes so that the contract value stays within a prescribed range (currently around INR 5 to 10 lakh). In IPOs, lot size refers to the minimum number of shares a retail investor must apply for.

Lower Circuit

A lower circuit is the maximum percentage fall allowed in a stock's price in a single trading session before trading is halted for a cooling-off period.

In India, individual stock circuit limits are set at 2, 5, 10, or 20 percent by the exchanges depending on the scrip's liquidity and volatility profile. Once the lower circuit is hit, only buy orders can be placed (no sellers willing to sell below the circuit floor), and trading resumes at a new band.

LTCG and STCG (Capital Gains Tax on Equity)

LTCG and STCG are the two tax categories for gains on listed equity shares and equity mutual funds in India, based on whether the holding period exceeds 12 months or not.

Listed equity shares and equity mutual fund units held for more than 12 months attract Long-Term Capital Gains tax, while those sold within 12 months attract Short-Term Capital Gains tax. Under the Finance Act 2024, LTCG on equity is taxed at 12.5 percent on gains above INR 1.25 lakh per financial year, while STCG is taxed at 20 percent. Gains on equity holdings accrued up to 31 January 2018 benefit from grandfathering provisions under the earlier transition framework.

LTP (Last Traded Price)

LTP is the price at which the most recent trade in a security was executed on the exchange, displayed in real time on trading platforms.

LTP differs from the bid and ask prices; it is the actual last deal price. In illiquid stocks, LTP may lag significantly behind current demand. During the pre-open session on NSE, the LTP from the previous day's close is used as the reference price for circuit limits.

Margin

Margin is the collateral (cash or approved securities) that a trader must deposit with a broker to take leveraged positions in futures or options.

SEBI requires collection of SPAN plus exposure margin for all F&O positions. Insufficient margin triggers a margin call; continued shortfall leads to automatic position square-off. Margins are recalculated daily based on volatility, so they can increase overnight.

Margin Call

A margin call is a broker's demand that you add funds when your account falls below the required margin, failing which positions may be squared off.

Margin calls hit leveraged positions when the market moves against them and the collateral value drops. If you do not top up, the broker can liquidate your holdings to recover the shortfall, often at the worst possible moment, which is why leverage cuts both ways.

Margin of Safety

Buying a stock at a discount to its estimated intrinsic value to protect against estimation errors.

Margin of safety is a core principle of value investing popularised by Benjamin Graham: only buy a security when it is trading significantly below your estimated intrinsic value. The discount (margin of safety) provides a buffer against errors in your valuation assumptions, the risk of unforeseen adverse events, and the natural uncertainty in business forecasting. A larger margin of safety compensates for more uncertain or difficult-to-value businesses. In Indian equity, a 30 to 50 percent discount to estimated intrinsic value is sometimes cited as an adequate margin for mid-cap value investing.

Marginal Standing Facility (MSF)

The MSF is an emergency RBI window where banks can borrow overnight funds above their normal limit at a penal rate, which is 5.5% as of mid-2026.

The MSF sits just above the repo rate and forms the upper bound of the policy rate corridor. Banks tap it when they are short of cash beyond what the repo allows. Its rate is currently kept in line with the bank rate, both at 5.5% as of mid-2026.

Market Breadth

Market breadth measures the number of stocks advancing versus declining in a given session, indicating whether a move in the index is broad-based or driven by only a few large-caps.

Positive breadth during a Nifty rally (most stocks rising) confirms the move. Negative breadth during a rally (few stocks pulling the index higher) is a divergence warning. Tools like Advance-Decline Ratio, McClellan Oscillator, and 52-week high/low counts measure breadth.

Market Breadth

The proportion of stocks advancing versus declining, used to assess whether a market move is broad-based.

Market breadth measures participation in a market move by comparing the number of advancing stocks to declining stocks on a given day. Strong breadth (many more stocks rising than falling) indicates a healthy broad-based rally. Narrow breadth (index rising but most stocks falling, driven by a few heavyweights) signals a potentially fragile advance. The Advance-Decline Line (A-D line) is a cumulative breadth indicator that tracks whether the typical stock is participating in an index trend. Divergence between index performance and breadth is often an early warning of trend weakness.

Market Cap

Market cap is the total market value of a listed company's outstanding shares, calculated by multiplying the current share price by the number of shares outstanding.

SEBI defines large-caps as the top 100 companies by market cap, mid-caps as ranks 101 to 250, and small-caps as rank 251 and beyond. Market cap is reviewed semi-annually. It is used for index weighting, portfolio classification, and comparisons via metrics like Price-to-Sales.

Market Cap to GDP

Market-cap-to-GDP, the Buffett indicator, divides the total value of all listed companies by the country's GDP to gauge whether the whole market is cheap or expensive.

Loosely, a reading below about 75% for India has signalled a cheap market and above about 100% to 110% a stretched one, though these bands are rough conventions, not precise triggers. It is a slow-moving valuation thermometer, useful for context, not for timing.

Market Correction

A market correction is a fall of 10% to 20% from a recent peak in a broad index, sharper than a routine dip but shallower than a bear market.

Corrections are common, even within healthy bull markets, and are often the price of admission for the longer climb. The convention is that under 10% is a dip, 10% to 20% is a correction, and 20% or more is a bear market. The labels are confirmed only in hindsight.

Market Depth

Market depth shows the full order book of pending buy and sell orders at different price levels for a security, revealing supply and demand at each price point.

NSE's Level 2 market depth displays the top 20 bid and ask price levels with their quantities. Traders use market depth to gauge support and resistance, anticipate large fills, and assess liquidity before executing large orders. Thin depth signals higher impact cost.

Market Maker

A market maker is a SEBI-registered entity that continuously quotes both buy and sell prices for a security, ensuring liquidity even when natural buyers and sellers are absent.

Market makers operate in India's SME IPO segment, currency derivatives, and exchange-traded bond markets. They earn the bid-ask spread as compensation for providing continuous liquidity. Without market makers, illiquid instruments would trade erratically and at high impact cost.

Market Order

A market order is an instruction to buy or sell a security immediately at the best available price in the current order book.

Market orders guarantee execution but not price. In liquid stocks, the fill is close to the last traded price. In illiquid stocks, a large market order can significantly move the price against the buyer or seller. Indian exchanges do not accept market orders during pre-open sessions.

Market Order

An order to buy or sell a security immediately at the best available price in the market, with no specified price; guarantees execution but not the price received.

A market order is the simplest type of trading instruction: buy or sell as much as possible at whatever price the market is currently offering. For liquid large-cap stocks (Reliance, TCS, HDFC Bank), the bid-ask spread is narrow and market orders execute close to the last traded price with minimal slippage. For illiquid mid-cap or small-cap stocks with wide spreads, a market order can execute at a significantly different price than the last traded price -- known as market impact or slippage. Indian retail investors often use market orders for urgency (catching a breakout or exiting a falling stock quickly) at the risk of worse execution prices. Limit orders guarantee the price but may not execute if the market moves away from the specified price.

Max Pain

Max pain is the strike price at which the total value of expiring options (both calls and puts) is minimised, theoretically causing the maximum loss for option buyers.

The theory suggests that the underlying tends to gravitate toward the max pain strike as expiry approaches, because options sellers (who hold large positions) may hedge in ways that push the price there. Max pain is calculated weekly for Bank Nifty and Nifty. It is a useful reference level, not a guarantee.

Mean Reversion

The statistical tendency of extreme values - stock prices, valuations, sector returns - to revert toward their long-term historical average over time, forming the basis of contrarian investing.

Mean reversion is the empirical observation that financial variables that have moved far from their historical average tend to drift back toward it. In Indian equity markets, this shows up in sector rotation: the best-performing sector in one year is often a median or below-median performer the following year, as capital inflows become inflows that push valuations to extremes before reverting. P/E multiples of individual stocks also exhibit mean reversion - a stock that has de-rated sharply (P/E compressed from 25 to 12) often re-rates if underlying fundamentals recover. Mean reversion is NOT a guarantee: a company with permanently impaired fundamentals will not revert to old price levels because the mean itself has shifted lower. Distinguishing temporary mean deviation from permanent fundamental deterioration is the hard work of contrarian investing. Statistically, mean reversion trading requires significant time horizons (often 18 to 36 months) and tolerance for continued drawdown before the reversion materialises.

Money Supply

Money supply is the total stock of money in circulation in the economy, measured at different levels from narrow (M0/M1) to broad (M3), monitored by the RBI.

M3, the broadest measure, includes bank deposits and is the RBI's primary reference aggregate. Rapid money supply growth that outpaces real GDP growth tends to generate inflation. Changes in CRR, OMOs and repo lending directly affect the money supply, giving the RBI multiple levers to control it.

Moving Average

A moving average is the average price of a stock over a defined past period (such as 20, 50 or 200 days), updated each session to smooth short-term noise.

Simple moving averages (SMA) treat each period equally; exponential moving averages (EMA) give more weight to recent prices. Technical analysts use moving averages to identify the trend direction and as dynamic support and resistance levels. A stock trading above its 200-day MA is generally in an uptrend.

MPC (Monetary Policy Committee)

The MPC is a six-member RBI committee that sets India's benchmark repo rate and other policy rates in bi-monthly meetings, with the mandate to target inflation.

Three members are RBI officials (including the Governor as chair) and three are external experts appointed by the government. Decisions are by majority vote, with the Governor holding a casting vote. Each MPC statement moves bond yields and equity markets, particularly rate-sensitive sectors like banking, real estate and NBFCs.

MTM (Mark-to-Market)

MTM is the daily settlement of gains and losses on futures positions based on the closing price, with profits credited or losses debited from the margin account.

All futures positions in India are settled daily at the exchange's closing reference price. A long futures position that closes below your entry price will see the difference debited as MTM loss. This daily cash flow makes futures different from options, where losses are capped at premium paid.

Mutual Fund NAV

NAV (Net Asset Value) is the per-unit value of a mutual fund scheme, calculated by dividing the scheme's total net assets by the number of outstanding units.

NAV is calculated at end of each business day by AMFI-registered AMCs. Buying at a higher NAV is not worse than buying at a lower NAV, because the value of the underlying portfolio is the same. Comparing NAV across funds or using it to judge cheapness is a common misconception.

NAV

Net Asset Value - the per-unit price of a mutual fund, calculated daily by dividing the fund's total net assets by units outstanding; buying and selling happens at the prevailing NAV.

NAV is declared at the end of each trading day by mutual funds after the market closes and is computed as: (total market value of all securities held plus receivables minus liabilities) divided by total units outstanding. For equity mutual funds, the NAV changes every market day based on the closing prices of the underlying stocks. A higher NAV does not mean a fund is expensive - a fund with NAV of Rs.5,000 and a fund with NAV of Rs.50 are equally attractive if their underlying portfolios have identical risk and return characteristics; only the P/E and quality of holdings, not the NAV number, determines fair value. Retail investors sometimes confuse low NAV with cheapness (buying NFOs at Rs.10 is not inherently better than buying an existing fund at Rs.500 - the returns come from the portfolio, not the entry NAV). For ETFs, the NAV is called indicative NAV (iNAV) and is updated intraday, while the traded market price may differ slightly from iNAV, creating tracking error.

NBFC

A Non-Banking Financial Company is a SEBI and RBI-regulated financial institution that provides credit, investments and other financial services but does not hold a banking licence and cannot accept demand deposits.

NBFCs cover a wide spectrum: retail lenders (Bajaj Finance, Muthoot Finance), housing finance companies (LIC Housing Finance), infrastructure lenders (PFC, REC Ltd), microfinance institutions and gold loan providers. They are regulated by the RBI under different categories based on size and activity. Because they cannot issue savings or current accounts, they fund themselves through bonds, debentures and bank borrowing. Large NBFCs are systemically important and their asset quality, capital adequacy and funding costs are closely watched by the market.

Negative Working Capital

When current liabilities exceed current assets, often indicating that a business collects cash before paying suppliers.

Negative working capital means a company's current liabilities are greater than its current assets. This is typically considered a strength (not a weakness) in consumer-facing businesses: retailers and subscription businesses collect cash from customers immediately while paying suppliers on extended credit terms. The business is effectively financing its operations using interest-free supplier credit. Dmart (Avenue Supermarts) is the most-cited Indian example of negative working capital in retail, which is a key contributor to its high cash return profile.

Net Profit Margin

Net profit margin is a company's net profit as a percentage of its revenue, showing how much of every rupee of sales it keeps as bottom-line profit.

It is the final margin in the profit cascade, after all costs, interest and tax. A 12% net margin means the company keeps 12 paise of profit per rupee of revenue. Margins vary hugely by sector, so net margin is most useful when compared within an industry, not across.

NFO (New Fund Offer)

An NFO is the period during which a new mutual fund scheme is open for subscription for the first time, typically at a face value of INR 10 per unit.

NFOs are similar to IPOs for mutual funds but should be evaluated differently: an NFO has no track record and the INR 10 NAV is not inherently cheap. SEBI mandates a minimum subscription window for NFOs. Investors should assess the fund's objective and mandate rather than the face-value illusion.

Nifty 50

Nifty 50 is NSE's benchmark index comprising the 50 largest and most liquid Indian companies by free-float market cap, representing key sectors of the Indian economy.

The index is computed in real time during market hours and is rebalanced semi-annually. Nifty 50 futures and options are among the world's most actively traded derivatives contracts. Index inclusion requires meeting SEBI's criteria for market cap, liquidity, and trading frequency.

Nifty 500

Nifty 500 is NSE's broad market index that tracks 500 companies across large-cap, mid-cap, and small-cap segments to reflect overall Indian equity market performance.

The index spans all major sectors and serves as a single broad measure of the listed Indian equity market. It encompasses the Nifty 50, Nifty Next 50, Nifty Midcap 150, and Nifty Smallcap 250, making it a useful benchmark for diversified portfolios and broad-market funds that seek full-spectrum Indian equity exposure.

Nifty Midcap 150

Nifty Midcap 150 is the NSE index tracking the 150 companies ranked 101 to 250 by free-float market cap, representing India's mid-cap segment.

SEBI classifies mid-cap companies as those ranked 101 to 250 by market cap, which is what Nifty Midcap 150 captures. The index tends to deliver higher long-run returns than large-caps but with greater volatility. Several mutual funds and ETFs in India use Nifty Midcap 150 as their benchmark.

Nifty Next 50

Nifty Next 50 tracks the 50 largest companies by free-float market cap after the Nifty 50, making it a large-cap plus mid-cap blend and a feeder for future Nifty 50 inclusions.

Stocks that qualify for Nifty 50 are typically first found in Nifty Next 50. The index has historically delivered higher returns than Nifty 50 over long periods but with greater volatility. Several ETFs and index funds in India track Nifty Next 50.

Nifty Next 50

The NSE index of the 51st to 100th largest listed companies by free-float market cap, just below the Nifty 50.

The Nifty Next 50 (also called Nifty Junior or Junior Nifty) is an NSE index comprising 50 large-cap stocks ranked 51st to 100th by free-float adjusted market capitalisation among NSE-listed companies. It sits immediately below the Nifty 50 in the large-cap universe. Companies graduating from Nifty Next 50 to Nifty 50 often see institutional buying pressure. Several large index ETFs track the Nifty Next 50, making it an investable large-cap extension beyond the Nifty 50.

Nifty Smallcap 250

Nifty Smallcap 250 is the NSE index capturing the 250 companies ranked 251 to 500 by free-float market cap, representing the small-cap universe.

SEBI defines small-caps as companies ranked 251 and beyond by market cap. Nifty Smallcap 250 is the standard benchmark for small-cap mutual funds. Small-caps are significantly more volatile than large-caps, tend to be less liquid, and often respond more sharply to both economic cycles and market sentiment shifts.

Non-Convertible Debenture (NCD)

An NCD is a debenture that cannot be converted into equity shares at any point, offering investors a fixed interest rate and repayment of principal at maturity.

Listed NCDs in India trade on the BSE and NSE debt segment, offering a secondary market exit. They are rated by agencies like CRISIL and ICRA, and the rating determines the interest rate offered. NCDs are popular with risk-aware retail investors seeking higher returns than bank fixed deposits.

NRI Investment

NRI investment refers to the framework under which non-resident Indians can invest in Indian equities, mutual funds, and fixed income using NRE or NRO accounts.

NRIs can invest in Indian stocks under the Portfolio Investment Scheme (PIS) via NRE (repatriable) or NRO (non-repatriable) accounts. NRE account gains and income are tax-free in India, while NRO income is taxable. SEBI caps aggregate NRI investment in a listed company at 10 percent of paid-up capital.

OFS (Offer for Sale)

An OFS is a mechanism by which promoters or large shareholders of a listed company sell their existing shares to the public through the exchange, without new share issuance.

OFS is simpler and faster than an FPO. It is completed in a single trading day on NSE or BSE. Promoters who want to reduce their stake and comply with minimum public shareholding norms use OFS. Retail investors get a 5 percent discount in some OFS structures.

Open Interest

Open interest is the total number of outstanding (not yet settled) futures or options contracts for a specific underlying at a given point in time.

Rising open interest during a price rally confirms the trend, as new money is entering. Falling open interest during a price rise suggests short-covering, not fresh buying. NSE publishes open interest data for every F&O contract throughout the trading day.

Open Interest

The total number of outstanding futures or options contracts not yet closed, settled, or expired.

Open interest (OI) increases when new contracts are created and decreases when contracts are closed or settled. Rising OI alongside rising price suggests new long money entering. Rising OI with falling price suggests new short positions building. Falling OI during a price move indicates existing position unwinding rather than fresh conviction. OI is widely used by Indian F&O traders alongside price action and volume to read market sentiment and positioning.

Open Market Operations (OMO)

OMOs are the RBI's buying and selling of government securities in the open market to inject or drain rupee liquidity from the banking system.

When the RBI buys G-secs, it pumps cash into banks, easing liquidity, and when it sells, it absorbs cash, tightening it. OMOs are a flexible day-to-day liquidity tool that works alongside the repo rate and reserve ratios to manage the quantity of money.

Open Offer

A mandatory open offer is the obligation under SEBI Takeover Regulations for an acquirer who crosses 25 percent shareholding in a listed company to make a public offer to buy at least 26 percent more from existing shareholders at the acquisition price.

When a buyer acquires 25 percent or more of a company (the trigger threshold) or crosses certain creep acquisition limits, SEBI requires them to offer to buy an additional 26 percent from public shareholders at the same or higher price. This protects minority investors by giving them an exit at a fair price when control changes. Open offer prices are typically at a premium to the market price, which is why stocks often rally on takeover news. The offer is managed by a SEBI-registered merchant banker and runs for 10 trading days.

Operating Margin

Operating margin is a company's operating profit divided by its revenue, expressed as a percentage, showing how efficiently it generates profit from its core business.

It differs from EBITDA margin in that it includes depreciation and amortisation. Indian IT companies typically report operating margins of 15 to 25 percent; FMCG companies can exceed 20 percent. Margin expansion over quarters is a positive signal for stock performance.

Out-of-the-Money (OTM)

An option is out-of-the-money when exercising it immediately would produce no profit: the underlying is below the call strike or above the put strike.

OTM options have zero intrinsic value and consist entirely of time value. They are cheaper than ATM or ITM options but have a lower probability of expiring with value. Retail traders in India frequently buy deep OTM options hoping for a large move, often losing the entire premium to time decay.

Oversubscription

Oversubscription is when the total applications received in an IPO exceed the number of shares available, expressed as a multiple such as 50 times oversubscribed.

High oversubscription in the retail or QIB category signals strong demand and usually correlates with better listing performance, though it is not a guarantee. In heavily oversubscribed IPOs, retail allotment is done by lottery (one lot per applicant) to ensure wide distribution.

P/B Ratio (Price to Book)

The Price-to-Book ratio compares a stock's market price to its book value per share, helping assess whether the market values the company above or below its net assets.

A P/B below 1 may indicate undervaluation or deep financial stress. Banking stocks in India are commonly evaluated on P/B because their assets are mostly financial instruments with known book values. High-growth tech and consumer brands often trade at P/B multiples of 10 or more.

P/E Ratio (Price to Earnings)

The Price-to-Earnings ratio divides a stock's market price by its earnings per share, showing how many rupees investors are paying for each rupee of earnings.

A high P/E can signal growth expectations or overvaluation; a low P/E may indicate value or declining business. The Nifty 50 P/E ratio, published daily by NSE, is a common barometer of overall market valuation. Trailing P/E uses past earnings; forward P/E uses analyst estimates.

Pain Trade

The market move that causes the most loss to the most investors, often reversing consensus positioning.

A pain trade is the market move that causes the maximum loss to the maximum number of market participants, typically by moving against the consensus positioning. If the majority of active investors are short a sector or long a particular defensive, a sharp rally in what everyone is short (or a crash in what everyone is long) is the 'pain trade' because it forces the most covering, margin calls, and position reversals simultaneously. Pain trades are particularly potent in options-heavy environments because directional bets in options can be completely wiped out by a move against consensus.

Participatory Notes (P-Notes)

Derivative instruments issued by FIIs to non-registered foreign investors for indirect Indian market exposure.

Participatory Notes (P-Notes or PNs) are financial instruments issued by registered Foreign Institutional Investors (FIIs) or Foreign Portfolio Investors (FPIs) to non-registered foreign investors who wish to gain exposure to Indian markets without directly registering with SEBI. The FPI holds the underlying Indian securities and issues a PN to the foreign investor representing economic exposure to those securities. P-Notes have been subject to regulatory scrutiny due to anonymity concerns; SEBI has progressively tightened P-Note regulations to improve transparency about ultimate beneficial owners.

PCR (Put-Call Ratio)

PCR is the ratio of total put open interest (or volume) to total call open interest (or volume) for an underlying, used to gauge market sentiment.

A PCR above 1 means more puts than calls are outstanding, suggesting bearish hedging or contrarian bullish signals. A PCR below 0.7 is typically read as complacency or excess bullishness. Indian traders watch Nifty and Bank Nifty PCR closely around weekly option expiries.

PEG Ratio

The PEG ratio is the P/E ratio divided by the company's earnings growth rate, adjusting for growth to identify whether a stock's P/E is justified by its growth prospects.

A PEG of 1 is generally considered fair value. PEG below 1 suggests potential undervaluation relative to growth. PEG is particularly useful for comparing growth stocks in India's consumer, IT, and healthcare sectors where high P/E ratios are common.

PEG Ratio

The Price/Earnings-to-Growth ratio, calculated by dividing a stock's P/E ratio by its expected earnings growth rate; a PEG below 1 signals potential undervaluation relative to growth.

The PEG ratio was popularised by Peter Lynch as a more honest valuation yardstick than the raw P/E because it accounts for the pace of earnings expansion. A fast-growing Indian IT company trading at a P/E of 30 with a 30% expected EPS growth rate has a PEG of 1.0, while a slow-growth PSU bank trading at a P/E of 8 with only 5% growth has a PEG of 1.6 - the IT company is arguably cheaper on a growth-adjusted basis. PEG below 1.0 is conventionally considered undervalued, above 1.5 is considered stretched. The ratio's weakness is that it depends on the accuracy of the earnings growth estimate used in the denominator - consensus analyst forecasts for Indian mid-caps are notoriously noisy, and a company that misses growth expectations can reprice sharply even if the absolute P/E looked reasonable on paper.

Periodic Call Auction

A periodic call auction (PCA) is a trading session where orders are collected for a set window and matched at a single discovered price, used for illiquid stocks in India.

SEBI mandated the PCA mechanism for illiquid stocks as an alternative to continuous trading. Orders accumulate during the call period, and the exchange discovers an equilibrium price that maximises volume. PCA reduces the scope for price manipulation in thin-volume securities that are easy to move in continuous trading.

Physical Settlement

Physical settlement in Indian stock F&O means that upon expiry, outstanding positions are settled by actual delivery of shares rather than cash difference.

SEBI mandated physical settlement for all stock derivatives from October 2019. If a stock futures or in-the-money stock option position is held to expiry, shares are delivered to or taken from the demat account. This has made holding stock F&O positions to expiry riskier for those without delivery intent.

Pledge (Shares)

Pledging shares means offering them as collateral to a lender or broker in exchange for a loan or trading margin, while you continue to own them.

Retail traders pledge holdings to get margin for F&O, with a haircut applied to the value. Separately, promoters pledge their stake to raise loans, which is a closely watched risk: a falling price can trigger forced selling of the pledged promoter shares.

PMS

Portfolio Management Services is a SEBI-regulated investment service where a professional manager constructs and manages a customised equity or debt portfolio on behalf of a high-net-worth client, with a minimum investment of Rs. 50 lakh.

Unlike mutual funds which pool investor money, PMS accounts are separately owned by each client, so the portfolio is customised and transactions are transparent at the stock level. PMS strategies range from concentrated high-conviction equity to multi-asset and factor-based approaches. Fees are typically a fixed management fee plus a performance fee above a hurdle rate. SEBI introduced stricter regulations for PMS providers in 2020, requiring a minimum net worth and enhanced disclosures. PMS disclosures including strategy-wise performance are available on the SEBI website.

Portfolio Rebalancing

Portfolio rebalancing is the process of buying or selling assets to restore a portfolio to its intended allocation after market movements have changed the original weights.

For Indian investors, this typically means resetting the balance between equity and debt when one asset class outperforms the other and shifts the portfolio's risk profile away from the target. Rebalancing can follow a fixed calendar schedule or a threshold-based trigger, but investors should account for the tax implications of redemption and any exit loads before making changes.

Pre-Open Session

The pre-open session is a 15-minute window before normal trading where orders are collected and an equilibrium opening price is discovered through a call auction.

On the NSE, the pre-open runs from 9:00 to 9:15 AM. It absorbs overnight news into a single opening price, reducing the wild volatility that an instant open would create. The discovered equilibrium price becomes the opening price for the regular session.

Preferential Allotment

Preferential allotment is the issuance of new shares by a listed company to a select group of investors (promoters, institutions, or strategic investors) at a SEBI-determined floor price.

SEBI regulations require the floor price to be computed from a weighted average of the last 26 weeks or 2 weeks of trading, whichever is higher. Preferential allotments can dilute existing minority shareholders and are therefore subject to shareholder approval via special resolution.

Preferential Allotment

Issue of new shares to a select group of investors at a SEBI-determined price, requiring shareholder approval.

A preferential allotment is the issue of shares, convertible debentures, or warrants by a listed company to a specific investor or small group -- typically a strategic investor or promoter -- at a price determined by SEBI's formula. Unlike a QIP, which is open to all QIBs, a preferential allotment targets particular buyers and requires shareholder approval via a special resolution. They are used for strategic investments, promoter stake increases, or bringing in a specific investor.

Premium (Options)

An option's premium is the price paid by the buyer to the seller for the right that the option grants, comprising intrinsic value and time value.

Premium is quoted per unit of the underlying. For a Nifty call option with a lot size of 75, if the premium is INR 100, the total cost per lot is INR 7,500. Premiums rise with higher volatility, longer time to expiry, and proximity to the strike price.

Price Action

Price action is a trading methodology that reads the raw movement of a stock's price on a chart, without relying on lagging indicators, to make trading decisions.

Price action traders focus on candlestick patterns, the shape of recent bars, and the structure of highs and lows to identify trends, reversals and breakouts. The logic is that price is the ultimate truth because it aggregates all known information. Support, resistance and moving averages are the main reference levels used alongside price action.

Price Band

The price band in an IPO is the range between the minimum (floor) and maximum (cap) price at which investors can bid for shares during the subscription period.

SEBI requires the cap of the price band to not exceed 120 percent of the floor price. Investors applying at the cut-off price agree to pay whatever the final issue price is within the band. Most Indian retail investors apply at the cut-off price to maximise allotment probability.

Price Discovery

Price discovery is the process by which the market arrives at a fair price for an asset through the interaction of buyers and sellers and their orders.

Continuous trading, the pre-open auction, and IPO book building are all price-discovery mechanisms. Liquid markets discover prices efficiently because many participants compete, while illiquid ones discover them poorly, leaving wide spreads and erratic moves.

Price-to-Book Ratio (P/B)

Market price per share divided by book value per share, showing how much the market values net assets.

The Price-to-Book ratio (P/B) compares a company's market capitalisation to its book value (net assets = total assets minus total liabilities). A P/B above 1 indicates the market expects returns above the cost of equity from existing assets. In India, P/B is most widely used to value banking stocks where assets (loan books) are relatively quantifiable. A high P/B is only justified by a high Return on Equity; comparing P/B without assessing ROE leads to misleading conclusions.

Price-to-Sales Ratio (P/S)

The price-to-sales ratio compares a company's market capitalisation to its annual revenue, used to value firms that are not yet profitable.

P/S is a fallback when earnings are negative or erratic, common for young, fast-growing or loss-making companies where the P/E ratio is meaningless. A low P/S can flag value, but it ignores profitability entirely, so it must be read alongside margins and growth.

Promoter

A promoter is the individual, family, or entity that founded, controls, or has significant management influence over a listed Indian company.

SEBI defines promoters through its categorisation rules and requires disclosure of all promoter shareholdings. Most Indian listed companies have high promoter stakes (often 50 to 75 percent). Promoter buying is typically a bullish signal; promoter selling or pledging raises governance concerns.

Promoter Holding

The percentage of a company's shares owned by its founding promoter group, disclosed quarterly to exchanges.

Promoter holding is the shareholding percentage of the founders, controlling family, or original promoters of a listed company. Indian companies must disclose promoter holding in the quarterly shareholding pattern filed with exchanges. Promoter pledging of shares as loan collateral is a key risk indicator disclosed alongside holding data. Declining promoter holding may indicate stake sales, while open market purchases by promoters are generally read as a bullish signal.

Promoter Pledging

Promoter pledging is when a promoter pledges their company shares as collateral for personal or business loans, creating a risk that lenders may sell shares if the stock price falls.

High pledging (above 50 percent of promoter holding) is a red flag. If the stock price drops and the loan-to-value ratio breaches a threshold, lenders invoke pledge and dump shares in the market, triggering further price declines in a vicious cycle. SEBI mandates quarterly disclosure of pledged shares.

Put Option

A put option gives the buyer the right, but not the obligation, to sell an underlying asset at a fixed strike price on or before the expiry date.

Buying puts is a bearish strategy or a hedge for existing long positions. A Nifty put buyer profits when the index falls below the strike minus premium paid. In India, index put options are European-style and can only be exercised at expiry. Put options are widely used by FIIs and funds as portfolio insurance.

Put Option

A contract giving the buyer the right, but not the obligation, to sell an asset at a specified strike price on or before expiry, paying a premium for this downside protection.

A put option gains value when the underlying falls below the strike price. Indian equity investors use put options for two primary purposes: speculation on downward price moves, and portfolio hedging (buying Nifty puts to protect a large-cap equity portfolio against a market crash). Put buyers have limited risk (the premium paid) and theoretically unlimited gain as the underlying falls toward zero. Put sellers receive the premium upfront and face significant downside risk if the underlying falls sharply. In India, Nifty and BankNifty weekly put options are among the most actively traded derivatives in the world by contract count, driven by the retail options trading boom of the 2020s.

Put-Call Ratio (PCR)

An F&O market sentiment indicator comparing put option open interest (or volume) to call option open interest, used to gauge bearishness vs. bullishness.

The Put-Call Ratio (PCR) is a derivative market sentiment indicator calculated by dividing the open interest (or trading volume) of put options by the open interest (or trading volume) of call options for a given index or stock. PCR = Put OI / Call OI. A PCR above 1 indicates more puts than calls outstanding, suggesting hedging demand or bearish sentiment. A PCR below 1 suggests more calls than puts, indicating bullish positioning or call writing. However, PCR interpretation requires context: a very high PCR (above 1.3 to 1.5) is sometimes read as a contrarian bullish signal, since extreme bearish positioning (excess puts) can indicate oversold conditions. A very low PCR (below 0.7) can signal complacency or an overbought market from a contrarian perspective. PCR is used alongside other technical and options market indicators; it is a useful sentiment data point but not a standalone trading signal.

QIB (Qualified Institutional Buyer)

QIBs are SEBI-registered institutional investors, including mutual funds, FPIs, banks, and insurance companies, eligible for a reserved portion of IPO allocations.

SEBI mandates that at least 75 percent of the net offer in a main-board IPO must be allocated to QIBs. QIBs do not pay application money upfront before allotment. Their participation is seen as a quality signal for the IPO's prospects.

Qualified Institutional Placement (QIP)

A fast-track listed-company fundraise by issuing fresh shares exclusively to institutional investors under SEBI regulations.

A QIP allows a listed Indian company to issue shares or convertible securities to Qualified Institutional Buyers (QIBs) such as mutual funds, FIIs, insurance companies, and banks, bypassing the lengthy public issue process. QIPs can be completed in weeks compared to months for a full FPO. The floor price is based on the average of the preceding two-week market price. QIPs are used to raise growth capital, deleverage balance sheets, or fund acquisitions and are dilutive for existing shareholders.

Rally

A rally is a sustained period of rising prices in a stock or index over days, weeks or months, often after a fall or on a fresh wave of buying.

A relief rally is a bounce within a downtrend, while a broad-based rally lifts most stocks together. Traders distinguish a durable rally, backed by strong breadth and volume, from a weak one that runs on thin participation and tends to fade.

Real Interest Rate

The real interest rate is the nominal interest rate minus inflation, showing the true return an investor earns after the erosion of purchasing power.

If a fixed deposit pays 7% while inflation runs at 5%, the real return is about 2%. When the repo rate sits comfortably above inflation, the real rate is positive, which the RBI watches as a sign that policy is genuinely restrictive rather than just nominally so.

Record Date

The record date is the cutoff date set by a company to determine which shareholders are eligible to receive a dividend, bonus, rights issue, or other corporate benefit.

Investors must have shares in their demat account and settled in their favour by the record date. Under T+1 settlement in India, shares bought on the trading day before the ex-date settle on the record date, making the ex-date the last day to buy and qualify.

Regular Plan

A regular plan of a mutual fund is bought through a distributor or advisor, who earns a trail commission, so its expense ratio is higher than the direct plan.

The commission baked into a regular plan's expense ratio lowers your net return over time compared with the direct plan of the same scheme. Regular plans suit investors who want hand-holding and advice; do-it-yourself investors usually prefer direct plans.

Reinvestment Risk

The risk that cash flows from a bond or fixed deposit will need to be reinvested at lower interest rates than the original instrument, reducing the total return relative to the initial expectation.

Reinvestment risk is particularly relevant for Indian investors holding FDs, bonds, or debt mutual funds in a falling interest rate environment. When an FD matures during a rate cut cycle, the renewal rate is lower than the original rate. For bonds paying periodic coupons, reinvestment risk means that coupon income is reinvested at prevailing lower rates, reducing the realised yield to maturity relative to the promised yield at purchase. Callable bonds (bonds that the issuer can redeem early) have higher reinvestment risk because they are typically called when rates fall (most favourable for the issuer, least favourable for the holder). Investors who lock in long-duration bonds during peak interest rates reduce reinvestment risk by extending the period for which they earn the higher rate.

REIT

A Real Estate Investment Trust is a SEBI-regulated trust that pools investor capital to own income-generating real estate assets and is required to distribute at least 90 percent of net distributable cash flows to unitholders.

India's REIT framework was introduced in 2014 and the first REIT (Embassy Office Parks) listed in 2019. REITs primarily own commercial real estate: office parks, retail malls and logistics warehouses. Because they must distribute most cash flows, they behave like a high-yield income instrument with equity-like participation in rent escalations and occupancy trends. Unitholders receive distributions that may include interest, dividend and capital gains components with different tax treatment. REIT units trade on exchanges like stocks. Mindspace Business Parks, Brookfield India Real Estate Trust and Nexus Select Trust are the other listed Indian REITs.

Repo Rate

The repo rate is the rate at which the RBI lends short-term funds to banks against government securities, the central policy rate, at 5.25% as of mid-2026.

The repo rate sets the floor under the entire interest-rate structure, so changes in it ripple into loan rates, deposit rates and stock valuations. A cut tends to lift equities and rate-sensitive sectors, while a hike does the reverse. The MPC reviews it bi-monthly.

Retail Quota

The retail quota in an IPO is the portion of shares reserved exclusively for individual investors applying for shares worth INR 2 lakh or less.

SEBI mandates a minimum 35 percent retail reservation in main-board IPOs. If the retail category is oversubscribed, allotment is done by computerised lottery ensuring one lot per unique applicant. Using multiple demat accounts to circumvent this is treated as fraudulent.

Return on Equity (ROE)

Net profit divided by shareholders' equity -- measures how efficiently a company earns returns on equity capital.

Return on Equity (ROE) measures the profitability generated for shareholders per unit of equity capital deployed. A consistently high ROE, typically above 15 to 18 percent for Indian equities, indicates pricing power and competitive advantages. ROE can be decomposed using DuPont analysis into net margin, asset turnover, and leverage to understand what is driving the return. Leverage-driven high ROE carries more risk than margin or turnover-driven ROE.

Reverse Merger

When a private company merges into a listed shell company to achieve stock exchange listing without a traditional IPO.

A reverse merger (also called a reverse takeover or RTO) is a process where a private company achieves a stock exchange listing by merging into an already-listed but typically inactive or shell company. The private company's shareholders gain control of the combined entity, effectively taking the private company public without the time, expense, and disclosure requirements of a traditional IPO. In India, reverse mergers are regulated by SEBI and require shareholder approvals. They have historically attracted regulatory scrutiny because of opacity relative to the IPO process.

Reverse Repo Rate

The reverse repo rate is the rate at which the RBI borrows from banks, absorbing surplus cash, now largely superseded by the Standing Deposit Facility.

Historically the floor of the rate corridor, the reverse repo's active role was taken over by the Standing Deposit Facility (SDF) in 2022, which is 5.0% as of mid-2026. The reverse repo rate still exists on paper but is no longer the operative tool for draining liquidity.

Rho

Rho measures how much an option's price changes for a 1 percentage point change in the risk-free interest rate, typically the least watched of the five main Greeks.

Call options have positive rho because higher interest rates raise the cost of carrying the underlying, making the right to buy more valuable. Put options have negative rho for the opposite reason. Rho matters most for long-dated options; for weekly Indian index options, its impact on premium is minimal compared with delta, theta and vega.

RHP (Red Herring Prospectus)

The RHP is the final IPO document filed with SEBI and the stock exchanges after regulatory observations, containing the confirmed price band and all material information about the offering.

The RHP replaces the DRHP once SEBI issues its observations. All investors bidding in the IPO must read the RHP's risk factors, financials, and objects of the issue. The RHP is filed at least three days before the IPO opens.

Rights Entitlement (RE)

Rights Entitlement, or RE, is the demat-credited, tradeable right given to existing shareholders to subscribe for shares offered in a company's rights issue.

When an Indian company announces a rights issue, REs are credited to eligible shareholders' demat accounts and can be traded on NSE or BSE during a limited window before the subscription closes. This allows shareholders who do not want to subscribe to sell their entitlement to other investors. SEBI made REs compulsorily tradeable from 2020, ending the earlier practice where unexercised entitlements simply lapsed.

Rights Issue

A rights issue is a corporate action offering existing shareholders the right to buy additional shares at a discounted price, in proportion to their current holding.

Shareholders who do not wish to participate can sell their rights entitlement in the market during the trading window. Rights issues dilute shareholders who do not subscribe. In India, rights issues are governed by SEBI's ICDR Regulations and require board and shareholder approval.

ROA (Return on Assets)

ROA measures how efficiently a company uses all its assets to generate net profit, calculated as net profit divided by average total assets.

ROA is particularly meaningful for asset-heavy industries like banking, infrastructure, and manufacturing. For Indian banks, ROA above 1 percent is considered healthy. Unlike ROE, ROA is not affected by financial leverage, making it more useful for cross-sector comparisons.

ROCE (Return on Capital Employed)

ROCE measures how efficiently a company generates profit from its total capital (equity plus debt), calculated as EBIT divided by capital employed.

ROCE is preferred over ROE for comparing companies with different capital structures. An ROCE above the cost of capital indicates value creation. Indian conglomerates and capital-intensive businesses like cement and steel are frequently evaluated on ROCE trends.

ROE (Return on Equity)

ROE measures a company's net profit as a percentage of shareholders' equity, showing how effectively it uses equity capital to generate earnings.

A sustained ROE above 15 percent is generally considered strong for Indian companies. High ROE driven by leverage (debt) rather than operating efficiency is a warning sign. ROE is decomposed using DuPont analysis into net margin, asset turnover, and leverage.

Rolling Returns

Rolling returns measure a fund's or stock's performance over multiple overlapping periods of the same length, giving a fuller picture of consistency than a single point-to-point return.

For example, 3-year rolling returns would compute the return for every 3-year window from inception: Jan 2015 to Jan 2018, Feb 2015 to Feb 2018, and so on. Rolling returns reveal whether strong historical CAGR was consistent or driven by a lucky starting point. A fund with better rolling return consistency is genuinely more reliable.

Rollover

Rollover is the process of closing a near-month futures position and simultaneously opening the same position in the next month's contract before expiry.

Rollover happens in the last week before expiry, typically the Tuesday and Wednesday before expiry Thursday. High rollover percentage (above 70 percent of the previous month's open interest) indicates continued market conviction in a trend. Rollover cost is determined by the basis between the two contracts.

RSI (Relative Strength Index)

RSI is a momentum oscillator that measures the speed and size of recent price changes on a scale of 0 to 100, with readings above 70 signalling overbought and below 30 oversold.

Developed by J. Welles Wilder, RSI compares average gains to average losses over a default 14-period lookback. In practice, Indian traders use RSI divergences (price making new highs while RSI makes lower highs) as early reversal signals. RSI alone is not a trading system; it works best with trend and volume confirmation.

SEBI (Securities and Exchange Board of India)

SEBI is India's capital markets regulator, established in 1992, responsible for protecting investors, developing the securities market, and regulating intermediaries.

SEBI regulates stock exchanges, mutual funds, brokers, investment advisers, and listed companies. It frames regulations like ICDR (for IPOs), LODR (for listed companies), PIT (for insider trading), and surveillance frameworks like ASM and GSM. SEBI's circulars are binding on all market participants.

Sectoral Index

A sectoral index tracks the performance of stocks belonging to a specific industry such as IT, pharma, banking, or FMCG, allowing focused market analysis.

NSE operates sectoral indices like Nifty IT, Nifty Pharma, Nifty FMCG, and Nifty Auto. These are widely used as benchmarks for sector-specific funds and to trade sector ETFs. Relative performance of sectoral indices versus Nifty 50 reveals sector rotation trends.

Sectoral Rotation

Sectoral rotation is the movement of investment capital from one industry or sector to another as economic conditions and market expectations shift.

Classic rotation patterns include money moving from rate-sensitive sectors like real estate and banking when rates are expected to fall, or into defensives like FMCG and pharma during economic slowdowns. Watching NSE's sectoral index relative performance versus Nifty 50 helps identify which rotation is underway.

Sensex

The Sensex (S&P BSE Sensex) is BSE's benchmark index comprising 30 of India's largest and most actively traded stocks, computed since 1979.

Sensex is a free-float market-cap weighted index reviewed semi-annually. It is often used interchangeably with Nifty 50 as a proxy for Indian equity market performance, though slight divergences occur due to different constituent sets. Sensex futures and options trade on BSE.

Sharpe Ratio

The Sharpe ratio measures a fund's return earned per unit of risk taken, calculated as excess return over the risk-free rate divided by its volatility.

A higher Sharpe ratio means better risk-adjusted performance: more return for each unit of volatility endured. It lets you compare two funds fairly when one earned more but was also far more volatile. It is a core metric in mutual-fund factsheets and portfolio analysis.

Short Buildup

A short buildup in derivatives is when price falls along with rising open interest, signalling that fresh sellers are entering and backing the down-move.

It is read as a bearish signal because new short positions are driving the fall, not just longs exiting. The opposite, a long buildup, is price rising on rising open interest. Distinguishing the two reveals whether a move is backed by fresh conviction.

Short Covering

Short covering is when traders who had sold short buy back to close their positions, pushing the price up, often producing a sharp but sometimes short-lived rally.

In derivatives, short covering shows up as price rising while open interest falls, since sellers are fleeing rather than buyers arriving. A rally driven mainly by short covering can fade once the trapped sellers are done exiting, unlike one backed by a fresh long buildup.

Short Selling

Short selling is selling shares you do not own, borrowed from a broker or lender, with the intention of buying them back later at a lower price to pocket the difference.

In India, short selling is permitted in the cash segment only intraday (via MIS orders), while overnight short positions require borrowing through the Securities Lending and Borrowing mechanism (SLBM). F&O short positions (selling futures or writing options) do not require physical share borrowing. Short sellers profit when prices fall and face theoretically unlimited risk if prices rise.

Short Squeeze

A short squeeze occurs when a heavily shorted stock rises sharply, forcing short sellers to buy back positions to limit losses, which in turn accelerates the price rise further.

Short squeezes amplify price moves because forced buying by distressed short sellers layers on top of natural demand. In India, short squeezes most commonly appear in the futures segment or in stocks borrowed through the Securities Lending and Borrowing mechanism. Stocks with a very high proportion of shorted float are vulnerable to sudden squeezes triggered by positive earnings, buyout rumours, or broader market rallies.

SIP (Systematic Investment Plan)

A SIP is a method of investing a fixed amount in a mutual fund at regular intervals (weekly, monthly, or quarterly), enabling rupee-cost averaging.

SIP triggers automatic deduction from your bank account and purchases mutual fund units at the prevailing NAV on each instalment date. SIP reduces the risk of investing a lump sum at a market peak. AMFI data shows SIP monthly inflows crossing INR 20,000 crore in 2024.

Slippage

Slippage is the difference between the price you expected to trade at and the price you actually got, caused by fast markets or thin liquidity.

A market order in an illiquid stock or during a volatile move can fill well away from the last seen price, which is slippage. It is an often-overlooked cost on top of brokerage and taxes, and it is why limit orders and liquid instruments are preferred for large trades.

Smart Beta

Smart beta refers to rules-based investment strategies that use factors such as value, momentum, quality or low volatility to construct a portfolio, sitting between purely passive index funds and active stock-picking.

Unlike a market-cap-weighted index where the largest companies automatically get the highest weights, a smart beta strategy weights stocks by a factor like earnings yield (value), price momentum (momentum), return on equity (quality) or standard deviation of returns (low volatility). NSE and BSE operate factor indices such as Nifty 200 Momentum 30 and Nifty Alpha 50. ETFs tracking these indices are available for retail investors. Smart beta strategies have shown long-term historical premium in global markets, though factor returns are cyclical and periods of underperformance relative to the market-cap benchmark can be extended.

SME IPO

An SME IPO is the listing of a small or medium enterprise on NSE Emerge or BSE SME, a separate board with lower eligibility thresholds than the main board, designed for smaller businesses.

SME listings require a lower minimum post-issue paid-up capital than main-board IPOs and have a higher minimum application lot size, which reduces direct retail risk exposure. SEBI and the exchanges tightened SME IPO disclosure and pricing norms after operator-driven price manipulation cases emerged in 2023-24. SME-listed companies graduate to the main board once they meet the larger market-cap and trading history requirements.

Sortino Ratio

The Sortino ratio is like the Sharpe ratio but divides excess return by downside deviation only, penalising funds for downside volatility rather than all volatility.

Since investors care more about losses than gains, the Sortino ratio is arguably a better risk-adjusted metric than the Sharpe ratio for equity funds. A fund that delivers returns that are volatile on the upside but stable on the downside will score better on Sortino than on Sharpe.

Sovereign Gold Bond (SGB)

Sovereign Gold Bonds are RBI-issued government securities denominated in grams of gold, offering returns linked to gold prices plus a fixed semi-annual interest payment.

SGBs are denominated in multiples of one gram of gold and priced at issuance using the IBJA gold rate. Investors earn a fixed semi-annual interest in addition to any gold price appreciation. Capital gains on redemption at maturity by the original investor are fully exempt from income tax, making SGBs more tax-efficient than physical gold or gold ETFs. Listed SGBs trade on BSE and NSE before maturity, allowing early exit at prevailing market prices.

SPAN Margin

SPAN (Standard Portfolio Analysis of Risk) margin is the minimum initial margin required by exchanges for futures and written options positions, calculated via the SPAN algorithm.

SPAN uses 16 risk scenarios covering price and volatility changes to compute the worst-case one-day loss for a portfolio. It is recalculated twice a day on Indian exchanges. SPAN margin accounts for inter-contract and inter-product offsets, rewarding hedged positions with lower margin requirements.

Square Off

To square off is to close an open position by taking the opposite trade, selling what you bought or buying back what you sold, leaving no net exposure.

Intraday positions must be squared off before the market closes, or the broker auto-squares them. The term applies across equity, F&O and currency segments. Squaring off realises the profit or loss on the trade and removes any further price risk.

Standard Deviation

Standard deviation measures how widely a stock or fund's returns swing around their average, a core gauge of volatility and therefore of risk.

A higher standard deviation means returns are more spread out and the investment is more volatile. In mutual-fund analysis it feeds the Sharpe ratio. Two funds with the same average return but different standard deviations carry very different risk profiles.

Standing Deposit Facility (SDF)

The SDF is the window where banks park surplus cash with the RBI without needing collateral, forming the floor of the policy rate corridor at 5.0% as of mid-2026.

Introduced in April 2022, the SDF replaced the reverse repo as the RBI's main tool for absorbing surplus liquidity. It sits just below the repo rate. Together the SDF floor, the repo centre and the MSF ceiling define the corridor inside which the overnight rate moves.

Statutory Liquidity Ratio (SLR)

SLR is the share of its deposits a bank must hold in safe liquid assets like government bonds, cash or gold, which is 18.00% as of mid-2026.

Unlike CRR cash, SLR assets earn a return because government bonds pay interest, but the bank still cannot lend that portion. SLR has a statutory ceiling of 40% under the Banking Regulation Act and doubles as a way to ensure banks hold a buffer of government paper.

Stock Split

A stock split divides existing shares into multiple shares at a proportionally lower price, reducing the face value while leaving total market cap unchanged.

A 2:1 split doubles the number of shares and halves both the price and the face value. Companies like Infosys and TCS have done multiple splits to improve affordability and liquidity. Unlike a bonus issue, a split is not funded from reserves but is purely a mechanical division.

Stock Split

A corporate action that increases the number of shares by reducing the face value, without changing the company's market capitalisation.

A stock split is a corporate action where a company increases its total number of shares outstanding by reducing the face value of each share by the same factor. For example, in a 2:1 split, the face value is halved (from Rs. 10 to Rs. 5), and for every one share held, the shareholder receives two shares. The market price per share adjusts proportionally downward. A Rs. 4,000 stock with a 10:1 split would trade at approximately Rs. 400 per share, while the shareholder holds 10 shares per original share. The company's total market capitalisation is unchanged by the split. Stock splits are done to improve affordability and liquidity -- a lower per-share price makes the stock more accessible to retail investors. SEBI requires companies to conduct splits via a record date process. Splits differ from bonus issues: in a split, the face value changes; in a bonus issue, the face value stays the same but new shares are created from reserves.

Stop Loss Order

A stop loss order automatically triggers a sell (or buy, for shorts) when the market price reaches a specified level, capping potential losses on an open position.

On NSE and BSE, stop loss orders are placed as SL or SL-M orders. An SL order has a trigger price and a limit price; it converts to a limit order once triggered. An SL-M order converts to a market order on trigger. Stop losses do not guarantee execution at the exact trigger price during fast moves.

Stop-Loss Order

An order placed to automatically sell a security if its price falls to a specified level, limiting potential losses on a position.

A stop-loss order is a risk management instruction placed with a broker to automatically execute a sale (for long positions) or a buy (for short positions) when a security's market price reaches a specified trigger price. For example, if you buy a stock at Rs. 1,000 and place a stop-loss at Rs. 920, the system will automatically initiate a sell order if the stock falls to Rs. 920, limiting your loss to approximately 8 percent. Stop-loss orders help investors manage downside without having to monitor prices continuously. On Indian exchanges, stop-loss orders are placed as SL (Stop-Loss Limit) orders, where both a trigger price and a limit price are specified, or as SL-M (Stop-Loss Market) orders, where the order becomes a market order once the trigger is hit. SL-M orders guarantee execution but not price; SL (limit) orders guarantee a minimum price but may not execute if the stock gaps through the trigger level. Stop-loss placement is a discipline, not a guarantee: in highly volatile or gapping markets, execution prices can be worse than the stop-loss level.

STP (Systematic Transfer Plan)

An STP is a mutual fund facility that automatically moves a fixed amount or all gains from one scheme (usually liquid fund) to another (usually equity fund) at regular intervals.

Investors park a lump sum in a low-risk liquid fund and use STP to transfer to an equity fund over 6 to 12 months, achieving rupee-cost averaging while earning better returns than a savings account during the waiting period.

Strike Price

The strike price is the predetermined price at which the buyer of an option can exercise the right to buy (call) or sell (put) the underlying asset.

Strike prices for Nifty options are available at 50-point intervals; for Bank Nifty at 100-point intervals. An option is in-the-money when the underlying is above the strike (for calls) or below the strike (for puts). The relationship between strike and spot determines intrinsic value.

STT (Securities Transaction Tax)

Securities Transaction Tax is a direct tax levied on equity and F&O trades at the point of execution on Indian stock exchanges, collected by the government through the broker.

STT rates differ by transaction type: equity delivery buy and sell trades carry a higher combined rate than intraday trades; options carry a rate on the premium; futures carry a separate lower rate. STT is automatically deducted by the broker and shown as a line item in the contract note. For traders declaring trading as a business, delivery-side STT paid is eligible for a rebate against income tax liability.

Sub-Broker

A sub-broker is an agent authorized by a registered broker to act as an intermediary between retail clients and the broker for executing trades on exchanges.

Sub-brokers in India are registered with SEBI and operate under the umbrella of their principal broker. SEBI has been phasing out the sub-broker category and replacing it with Authorised Persons (APs), who have a narrower regulatory scope but serve a similar function in smaller cities.

Support and Resistance

Support is a price level where buying interest has historically been strong enough to halt a decline; resistance is a level where selling pressure has consistently capped rallies.

These levels form because market participants remember where price bounced or reversed before and act on those memories. A support level once broken tends to become resistance (and vice versa). Technical analysts use horizontal levels, moving averages and previous highs/lows as the main support and resistance references.

Surveillance (ASM/GSM)

Exchange surveillance is the ongoing monitoring of listed securities for unusual price movements, volume patterns, or corporate governance lapses that may indicate manipulation or fraud.

NSE and BSE conduct daily surveillance using automated systems that flag outliers in price-volume behaviour. Flagged securities may be placed under ASM, GSM, or periodic call auction (PCA) frameworks. SEBI can also direct exchanges to take action based on intelligence from investor complaints and media reports.

Swing Trading

Swing trading is a trading style where positions are held for several days to a few weeks to capture directional price moves between key support and resistance levels.

It sits between intraday trading, where positions are closed the same day, and delivery investing, where holdings are kept for longer periods. In India, many traders use swing setups in cash stocks and NSE F&O, particularly around weekly expiries, though overnight gap risk can materially affect entries, exits, and stop-loss execution.

SWP (Systematic Withdrawal Plan)

An SWP is a mutual fund facility where you withdraw a fixed amount at regular intervals from your investment, providing a steady income stream.

Retirees in India use SWP from balanced advantage or debt funds to generate monthly cash flows. Each withdrawal redeems units at the prevailing NAV. Unlike a dividend option, SWP gives control over timing and amount. Capital gains tax applies on each redemption.

Systematic vs Unsystematic Risk

Systematic risk affects the entire market; unsystematic risk is company or sector-specific and diversifiable.

Systematic risk (also called market risk or non-diversifiable risk) is the risk inherent to the entire market -- economic recessions, interest rate changes, geopolitical events -- that affects all investments simultaneously and cannot be eliminated through diversification. Unsystematic risk (also called specific risk or diversifiable risk) is risk unique to a company or sector: management failure, product recall, regulatory action, or sector disruption. Unsystematic risk is reduced by holding a diversified portfolio; only systematic risk remains in a fully diversified portfolio. Beta is the standard measure of a stock's systematic risk relative to the overall market.

T-Bill (Treasury Bill)

Treasury bills are short-term government debt instruments issued by the RBI, maturing in 91, 182, or 364 days and sold at a discount to face value with no periodic interest payments.

T-bills are zero-coupon instruments: they are issued at a price below face value and redeemed at par at maturity, with the discount representing the return. They are considered the safest short-duration instruments in India and serve as the benchmark for the short end of the yield curve. Retail investors can purchase T-bills directly through the RBI Retail Direct portal without going through a broker.

T+0 Settlement

T+0 settlement (same-day settlement) allows trades executed in the first half of the trading session to be settled on the same day, reducing counterparty risk.

SEBI introduced T+0 as an optional same-day settlement segment for top liquid NSE stocks in 2024, alongside the standard T+1 cycle. Shares and funds transfer on the same day by 4:30 PM. It is a stepping stone toward instant (T+0 or real-time) settlement.

T+1 Settlement

T+1 settlement means a stock trade is settled (shares and funds exchanged) on the next trading day after the trade date, which is the standard in India since 2023.

India moved all NSE and BSE equity market trades to T+1 settlement by January 2023, making it one of the fastest settlement cycles globally. T+1 means funds are released to sellers and shares reach buyers' demat accounts by the next business day end.

T2T Segment (Trade-to-Trade)

The T2T segment is an exchange classification that requires every trade in a listed stock to result in mandatory delivery, prohibiting intraday squaring off or netting of positions.

NSE and BSE move stocks into the T2T segment to curb speculative intraday activity in securities suspected of price manipulation or abnormal volatility. Every buy must result in delivery to the buyer's demat account; every sell must be backed by shares in the demat account. Intraday MIS leverage orders and SPAN margin trades are not permitted, significantly reducing the scope for operator-driven price swings.

Tax-Loss Harvesting

Tax-loss harvesting is the practice of selling investments at a loss to offset capital gains elsewhere in the portfolio, reducing the total tax liability in a financial year.

In India, short-term capital losses can be set off against both short-term and long-term capital gains, while long-term capital losses can only offset long-term gains. Harvested losses can be carried forward for 8 years. Investors typically do this near the end of the financial year (March) to trim their tax bill without fundamentally changing their portfolio.

Technical Analysis

Technical analysis is the study of price charts, volume patterns and indicators to forecast future price movements, based on the idea that history tends to repeat.

Unlike fundamental analysis, which values a business, technical analysis is purely chart-based. Its practitioners argue that all known information is already reflected in price and that reading patterns in price and volume is sufficient to trade. RSI, MACD, moving averages and candlestick patterns are its main tools.

Theta

Theta is the rate at which an option loses value each day due to the passage of time, also called time decay.

Theta is negative for option buyers (time erodes the premium they paid) and positive for sellers (time decay accrues as profit). At-the-money options near expiry experience the fastest theta decay. In India's weekly options market, theta accelerates sharply in the last two days before expiry.

Theta

The option Greek measuring daily time decay - the rupee amount an option loses in value each calendar day, all else equal; theta works against buyers and in favour of sellers.

Theta is why the weekly options market in India is structurally tilted toward sellers over buyers: every day that passes without a directional move erodes the time value embedded in the option premium. For a Nifty 50 at-the-money option in its expiry week, theta can be several hundred rupees per lot per day - a cost the buyer bleeds even if the index stands still. Theta is not linear: time decay accelerates as the option approaches expiry, with the steepest decay in the final week. This property is why many retail traders who buy options on Monday expecting a move by Thursday frequently lose money even when directional intuition is correct but the move arrives too slowly. Professional option sellers (short straddles, iron condors) monetise theta by collecting premium and betting on a range-bound market.

Time Value (Options)

Time value is the portion of an option's premium that exceeds its intrinsic value, reflecting the probability that the option will gain more intrinsic value before expiry.

Time value is highest for at-the-money options and declines to zero at expiry. Longer-dated options carry more time value. Volatility also inflates time value: higher India VIX leads to higher premiums even for out-of-the-money options.

Tracking Error

Tracking error measures how closely an index fund or ETF follows its benchmark, as the standard deviation of the difference between their returns.

A low tracking error means the fund mirrors its index tightly, which is the whole point of passive investing. Cash drag, fees and rebalancing costs cause tracking error. When choosing between two index funds on the same benchmark, lower tracking error is better.

Tracking Error

Tracking error is the annualised standard deviation of the difference between an index fund or ETF's returns and the returns of its benchmark index, measuring how closely the fund replicates the index.

A lower tracking error means the fund follows its benchmark more faithfully. Causes include cash drag, dividend reinvestment timing, rebalancing delays, transaction costs, and the expense ratio. SEBI requires index funds to disclose tracking error monthly. For Nifty 50 index funds, an annualised tracking error below 0.5 percent is generally considered tight replication.

UPI Mandate (IPO)

In IPOs, the UPI mandate allows retail investors to apply via their UPI ID, with the application amount blocked (not debited) from their bank account until allotment.

SEBI mandated UPI-based ASBA for retail IPO applications in 2019. The investor receives a collect request on their UPI app (BHIM, PhonePe, GPay, etc.) and approves it, blocking the funds. If not allotted, the block is released within 4 working days after listing.

Upper Circuit

An upper circuit is the maximum percentage rise allowed in a stock's price in a single trading session before further buying is halted at that level.

Once a stock hits its upper circuit (5, 10, or 20 percent depending on its band), only sell orders can be placed. In practice this means demand far exceeds supply and the stock freezes at the ceiling. Upper circuits on consecutive days often indicate an operator-driven or news-driven rally.

USD-INR

USD-INR is the exchange rate showing how many rupees one US dollar buys, where a rising number means a weaker rupee and a falling number a stronger one.

A weaker rupee lifts the rupee earnings of exporters like IT and pharma while raising costs for importers like oil refiners and airlines. A falling rupee often accompanies foreign outflows and feeds imported inflation, linking the currency to rates and the whole market.

Vega

Vega measures how much an option's premium changes for a 1 percentage point change in implied volatility of the underlying asset.

Options buyers benefit from rising volatility (higher vega exposure); sellers benefit from falling volatility. India VIX is closely watched as a proxy for Nifty option implied volatility. Long-dated options have higher vega sensitivity than near-expiry options.

Vega

The option Greek measuring how much an option's price changes for every one-percentage-point rise in implied volatility; buyers are long vega, sellers are short vega.

Vega is the sensitivity of an option's price to implied volatility, independent of any directional move in the underlying. When India VIX spikes - during a budget shock, a global risk-off event, or a sudden geopolitical development - option premiums inflate because vega pushes prices higher across all strikes. An option buyer who purchased a Nifty put before a volatility spike benefits from a vega gain even without a corresponding fall in Nifty. Conversely, option sellers suffer vega losses when volatility rises, because they sold premium at lower implied volatility and now owe higher premium if they need to close. Vega is highest for at-the-money options and for options with more time to expiry - a longer-dated option has more time over which uncertainty can materialise, so a given rise in implied volatility has a larger rupee impact on its premium.

Volatility

Volatility is the degree to which a price swings up and down over time, with high volatility meaning large, rapid moves and greater risk.

India VIX is the market's gauge of expected near-term Nifty volatility, sometimes called the fear index because it spikes in falling markets. Higher volatility raises option premiums and widens the range of likely outcomes, which matters for position sizing and risk.

VWAP (Volume Weighted Average Price)

VWAP is the average price at which a stock has traded throughout the day, weighted by the volume traded at each price level.

VWAP is used by institutional traders as a benchmark: executing below VWAP is considered a good buy; selling above VWAP is a good sell. In India, VWAP is also the reference price for block deal window pricing, block deal orders must be within 1 percent of VWAP.

Warrant

A warrant is a derivative issued by a company that gives the holder the right to buy the company's shares at a specific price before a set expiry date.

Unlike exchange-listed options, warrants are issued directly by the company and their exercise creates new shares, diluting existing shareholders. In India, warrants are commonly issued as part of preferential allotments to promoters or strategic investors, with a conversion price set at a SEBI-specified premium. Warrant exercise is a monitored corporate action.

Wholesale Price Index (WPI)

The WPI tracks the prices of goods at the wholesale or producer level, before they reach the retail consumer, a gauge of inflation in bulk transactions.

WPI has no services component and is dominated by manufactured goods and primary articles, which makes it more volatile than CPI. The RBI targets CPI, not WPI, because CPI reflects what households actually pay, but WPI is watched as an early signal of input-cost pressure.

Working Capital

Working capital is the difference between a company's current assets and current liabilities, measuring the liquidity available to fund day-to-day business operations.

Positive working capital means the company can comfortably meet near-term obligations from its own short-term assets. Negative working capital is normal in sectors like organised retail where customers pay upfront and suppliers are paid on credit terms, so it is not inherently alarming. Analysts track working capital cycles and trends to assess operational efficiency in manufacturing, FMCG, and trading businesses.

XIRR (Extended Internal Rate of Return)

XIRR is the annualised return on an investment that involves irregular cash flows (like SIP instalments), accounting for the exact dates of each inflow and outflow.

Unlike CAGR, which assumes a single lump sum, XIRR is the correct metric for evaluating SIP returns or any portfolio with multiple dated cash flows. Most Indian mutual fund apps and fintech platforms display SIP returns as XIRR. A positive XIRR indicates the investment has grown in real terms.

Yield Curve

The yield curve plots the interest rates of government bonds across maturities, from short to long term, and its shape signals expectations about growth and rates.

A normal upward-sloping curve means longer bonds yield more than shorter ones. A flat or inverted curve, where short rates exceed long rates, has historically been a warning of slowing growth. The curve's shape reflects the market's view on future inflation and RBI policy.

YTM (Yield to Maturity)

YTM is the total annualised return an investor earns if they hold a bond until maturity, assuming all coupon payments are reinvested at the same rate.

YTM is the true all-in yield of a bond and is the standard metric for comparing bonds with different prices, coupons, and maturities. A bond trading at a discount to face value has a YTM above its coupon rate; one trading at a premium has a YTM below its coupon rate. In India, G-sec YTMs are the risk-free reference rates for pricing all other fixed-income instruments.