Home / Learn / Bulk Deals vs Block Deals: What's the Difference?
Guide

Bulk Deals vs Block Deals: What's the Difference?

Updated 2026-11-03

Bulk deals and block deals are both large trades that exchanges require to be reported, so the market can see when big players move. They sound similar but are defined differently.

Bulk deals

A bulk deal is a trade (or set of trades by one client in one stock on one day) that adds up to more than 0.5% of the company's listed shares. Bulk deals happen in the normal market during regular trading hours and are disclosed after the session, with the client name, quantity, and price.

Block deals

A block deal is a single large trade — typically a minimum value threshold set by SEBI — executed in a special, separate block-deal trading window (short sessions in the morning and afternoon). It lets two parties transact a big quantity at an agreed price without disrupting the open market.

Why they matter

Both reveal that a large investor is entering or exiting a stock — often an institution, fund, or promoter. Pairing them with insider disclosures gives a picture of smart-money activity. See how to track deals via API.

More guides

How to Get NSE Quarterly Results via API

A developer's guide to fetching NSE & BSE quarterly and annual results programmatically — the endpoint, the fields, consolidation basis, and how to read the as-filed numbers correctly.

Read guide →

What Is the P/E Ratio (and How to Get It via API)

What the price-to-earnings ratio means, how it's calculated from price and EPS, the gotchas (negative earnings, consolidation basis), and how to fetch a stock's current P/E for any NSE/BSE company through an API.

Read guide →

How to Find Which Mutual Funds Hold a Stock (via API)

Find every mutual-fund scheme that holds a given NSE/BSE stock — quantity, market value, and % of AUM — built from AMFI and 40+ fund houses' own monthly portfolio disclosures, available as a REST API.

Read guide →

How to Get Indian Stock Prices via API (NSE & BSE EOD)

Fetch end-of-day OHLCV price history for any NSE or BSE stock via API — the endpoint, the fields, split/bonus adjustment, and how to build a clean price series.

Read guide →

ROE vs ROCE Explained (and How to Get Them via API)

What return on equity (ROE) and return on capital employed (ROCE) measure, how they differ, and how to fetch both for any Indian stock through a single API call.

Read guide →

How to Build a Stock Screener with an API

Build your own Indian stock screener programmatically — filter the NSE/BSE universe by market cap, P/E, ROE, ROCE and more using a single screener API endpoint.

Read guide →

How to Get a Company's Shareholding Pattern via API

Fetch the promoter, FII, DII, and public shareholding breakdown for any NSE/BSE company via API — straight from the SEBI quarterly disclosures.

Read guide →

How to Track Bulk Deals, Block Deals & Insider Trades via API

Follow the big trades — bulk deals, block deals, and SEBI insider/promoter (PIT) disclosures — for any Indian stock or market-wide, through a REST API.

Read guide →

NSE vs BSE: Which Ticker Should You Use with the API?

How ticker symbols work across NSE and BSE, why the same company can have two listings, and how to resolve names to the right ticker with the search API.

Read guide →

What Is Market Capitalisation? (Market Cap Explained)

Market capitalisation is the total market value of a company's shares. Here's how it's calculated, what large-, mid-, and small-cap mean in India, and why market cap matters more than share price.

Read guide →

What Is a Dividend? Dividends Explained for Beginners

A dividend is a share of a company's profits paid to shareholders. Learn how dividends work, the key dates (record date, ex-date), dividend yield, and how to find a company's dividend history.

Read guide →

What Is EPS (Earnings Per Share)? A Simple Explanation

Earnings per share (EPS) is a company's profit divided by its number of shares. Learn how EPS is calculated, basic vs diluted EPS, and why it drives the P/E ratio.

Read guide →

What Is the NIFTY 50? India's Benchmark Index Explained

The NIFTY 50 is the National Stock Exchange's benchmark index of India's 50 largest, most-liquid companies. Learn what it is, how it's calculated, and what it tells you.

Read guide →

What Is the SENSEX? The BSE's 30-Stock Benchmark Explained

The SENSEX is the Bombay Stock Exchange's benchmark index of 30 established Indian companies. Learn what it measures, how it's weighted, and how it compares to NIFTY.

Read guide →

What Is a Stock Market Index? A Beginner's Guide

A stock market index tracks the combined performance of a group of stocks. Learn how indices are built, what weighting means, and what sectoral and broad-market indices tell you.

Read guide →

Consolidated vs Standalone Financials: What's the Difference?

Consolidated financials include a company's subsidiaries; standalone covers just the parent. Learn which to use, why mixing them distorts growth, and how the two are labelled.

Read guide →

How to Read a Balance Sheet: A Beginner's Guide

A balance sheet shows what a company owns, owes, and is worth at a point in time. Learn the three parts — assets, liabilities, and equity — and the key ratios to check.

Read guide →

What Is the Debt-to-Equity Ratio? (D/E Explained)

The debt-to-equity ratio compares how much a company has borrowed against shareholders' funds. Learn how it's calculated, what's a healthy level, and why it varies by sector.

Read guide →

What Is Book Value and the P/B Ratio?

Book value is a company's net worth per share; the price-to-book (P/B) ratio compares it to the market price. Learn what each means and when P/B is most useful.

Read guide →

What Is a Stock Split? Why Companies Split Their Shares

A stock split divides each share into more shares at a lower price, without changing the company's value. Learn how splits work, why companies do them, and how they affect your holdings.

Read guide →

What Is a Bonus Issue of Shares?

A bonus issue gives existing shareholders extra free shares from the company's reserves. Learn how a bonus issue works, how it differs from a dividend and a split, and its effect on price.

Read guide →

What Is the Face Value of a Share?

Face value (par value) is the nominal value of a share set by the company. Learn what it means, how it differs from market price, and why it matters for dividends and splits.

Read guide →

What Are Corporate Actions? (Dividends, Splits, Bonus & More)

Corporate actions are events a company initiates that affect its shares — dividends, splits, bonus issues, rights, buybacks. Learn the main types and the key dates.

Read guide →

Adjusted Close vs Close Price: What's the Difference?

The close is the raw as-traded price; the adjusted close accounts for splits and bonus issues so a chart stays continuous. Learn when to use each.

Read guide →

Bull Market vs Bear Market: What's the Difference?

A bull market is a sustained rise in prices; a bear market is a sustained fall. Learn where the terms come from, the common thresholds, and what drives each.

Read guide →

What Is the 52-Week High and Low?

The 52-week high and low are the highest and lowest prices a stock traded at over the past year. Learn what they signal and how traders use them.

Read guide →

What Is Dividend Yield? How to Calculate It

Dividend yield is the annual dividend as a percentage of share price. Learn how to calculate it, what counts as high or low, and why a very high yield can be a warning.

Read guide →

Operating, Gross & Net Profit Margins Explained

Profit margins show how much of a company's revenue turns into profit at each stage. Learn the difference between gross, operating, and net margin, and what each reveals.

Read guide →

Current Ratio vs Quick Ratio: Measuring Liquidity

The current and quick ratios measure whether a company can pay its short-term bills. Learn how each is calculated and what a healthy level looks like.

Read guide →

What Is EBITDA? And How It Differs from Net Profit

EBITDA is earnings before interest, tax, depreciation, and amortisation. Learn what it measures, why analysts use it, and its limitations versus net profit.

Read guide →

What Is Free Cash Flow (FCF)?

Free cash flow is the cash a company generates after capital spending. Learn how it's calculated, why it matters more than profit, and what negative FCF signals.

Read guide →

The Cash Flow Statement Explained

The cash flow statement tracks actual cash moving through a company across operating, investing, and financing activities. Learn to read all three sections.

Read guide →

The Profit & Loss Statement (Income Statement) Explained

The P&L statement shows a company's revenue, costs, and profit over a period. Learn how to read it from the top line down to net profit and EPS.

Read guide →

What Is TTM (Trailing Twelve Months)?

TTM sums the last four quarters to give a rolling one-year figure. Learn why analysts use trailing-twelve-month numbers and how they power ratios like P/E.

Read guide →

What Is a Fiscal Year in India? (FY and Quarters Explained)

India's fiscal year runs April to March. Learn how FY and quarters (Q1–Q4) are numbered, why it matters for reading results, and the non-March exceptions.

Read guide →

Revenue vs Profit: What's the Difference?

Revenue is total sales; profit is what's left after costs. Learn why a company can have huge revenue and still lose money, and which number matters when.

Read guide →

Indian Stock Market Trading Hours & Settlement (T+1)

The NSE and BSE trade 9:15 AM to 3:30 PM IST on weekdays. Learn the session timings, the pre-open session, and what T+1 settlement means for your trades.

Read guide →

What Are Circuit Limits (Price Bands) in the Stock Market?

Circuit limits cap how far a stock or index can move in a day. Learn about upper and lower circuits, price bands, and why trading halts happen.

Read guide →

What Is the Bid-Ask Spread?

The bid-ask spread is the gap between the highest buy price and lowest sell price. Learn what it signals about liquidity and why it's a hidden trading cost.

Read guide →

Market Order vs Limit Order: What's the Difference?

A market order executes immediately at the best available price; a limit order only fills at your chosen price or better. Learn when to use each.

Read guide →

Intraday vs Delivery Trading: What's the Difference?

Intraday trades are opened and closed the same day; delivery means you actually hold the shares. Learn how they differ in risk, cost, and settlement.

Read guide →

Trading Volume vs Delivery Percentage Explained

Volume is how many shares traded; delivery percentage is how many were actually taken into demat. Learn why delivery % is a conviction signal.

Read guide →

What Is an ISIN? (And How It Differs from a Ticker)

An ISIN is a globally unique 12-character code identifying a security. Learn what it is, how Indian ISINs are structured, and how it differs from a ticker symbol.

Read guide →

What Is an IPO (Initial Public Offering)?

An IPO is when a private company first sells shares to the public and lists on an exchange. Learn how the process works and what happens on listing day.

Read guide →

What Are Blue-Chip Stocks?

Blue-chip stocks are large, established, financially sound companies. Learn what defines them, their pros and cons, and how they differ from small caps.

Read guide →

What Are Penny Stocks? (And the Risks)

Penny stocks are very low-priced, small-company shares. Learn what defines them, why they're risky, and the liquidity and manipulation traps to watch for.

Read guide →

What Is a Share Buyback?

A buyback is when a company repurchases its own shares from the market. Learn how buybacks work, why companies do them, and how they differ from dividends.

Read guide →

What Is a Rights Issue?

A rights issue lets existing shareholders buy new shares at a discount, in proportion to their holding. Learn how it works and how it differs from a bonus issue.

Read guide →

FII vs DII: Who Are the Big Institutional Investors?

FIIs are foreign institutional investors; DIIs are domestic ones. Learn who they are, why their daily buying and selling moves the market, and how to track it.

Read guide →

Promoter vs Public Shareholding: What It Means

Promoter holding is the founders'/controlling group's stake; public holding is everyone else. Learn why the split matters and what rising or falling promoter holding signals.

Read guide →

What Are Pledged Shares? (And Why They're a Risk)

Pledged shares are promoter shares used as collateral for loans. Learn why high promoter pledging is a warning sign and how to check a company's pledge level.

Read guide →

What Is Delisting? When a Stock Leaves the Exchange

Delisting is the removal of a company's shares from a stock exchange. Learn the difference between voluntary and compulsory delisting and what it means for holders.

Read guide →

What Is Insider Trading? (Legal Disclosures vs Illegal Trading)

Insider trading can be legal (disclosed promoter/employee trades) or illegal (trading on unpublished price-sensitive information). Learn the difference and how disclosures work.

Read guide →

What Is NIFTY Bank (Bank Nifty)?

NIFTY Bank, or Bank Nifty, is the NSE's index of the largest, most-liquid Indian banking stocks. Learn what it tracks and why it's so heavily traded.

Read guide →

What Is Free-Float Market Cap?

Free-float market cap counts only the shares available for public trading, excluding promoter and locked-in holdings. Learn why indices use it.

Read guide →

ETF vs Mutual Fund: What's the Difference?

ETFs trade on an exchange like a stock; mutual funds are bought and sold at end-of-day NAV. Learn how they differ in trading, cost, and structure.

Read guide →

What Is NAV (Net Asset Value) of a Mutual Fund?

NAV is the per-unit value of a mutual fund, calculated daily. Learn how it's computed, why a low NAV isn't 'cheaper', and how to track it.

Read guide →

What Is the Expense Ratio of a Mutual Fund?

The expense ratio is the annual fee a fund charges as a percentage of assets. Learn how it quietly eats into returns and why low-cost funds matter.

Read guide →

What Is a SIP (Systematic Investment Plan)?

A SIP invests a fixed amount in a mutual fund at regular intervals. Learn how rupee-cost averaging and compounding make SIPs a popular investing discipline.

Read guide →

Direct vs Regular Mutual Fund Plans

Direct plans cut out the distributor commission, so they have a lower expense ratio and higher returns than regular plans. Learn the difference.

Read guide →

Large-Cap, Mid-Cap & Small-Cap Funds Explained

Mutual funds are categorised by the market-cap tier they invest in. Learn how large-, mid-, and small-cap funds differ in risk and return.

Read guide →

What Is an Index Fund?

An index fund passively tracks a market index like the NIFTY 50 instead of trying to beat it. Learn how index funds work and why low cost is their edge.

Read guide →

What Is AUM (Assets Under Management)?

AUM is the total value of money a fund or AMC manages. Learn what it signals about a fund's size and why very large AUM can be a double-edged sword.

Read guide →

Why Do Stock Ticker Symbols Change?

A company can be renamed, changing its ticker symbol while staying the same business. Learn why symbols change and how the ISIN keeps the identity stable.

Read guide →

What Is CAGR (Compound Annual Growth Rate)?

CAGR is the smoothed annual growth rate of an investment over a period. Learn the formula, why it beats a simple average, and how to compute it from price data.

Read guide →

What Is Beta? Measuring a Stock's Volatility

Beta measures how much a stock moves relative to the overall market. Learn what beta above or below 1 means and how it's used to gauge risk.

Read guide →

What Is the PEG Ratio?

The PEG ratio divides P/E by earnings growth to judge valuation relative to growth. Learn how it refines the P/E and what a PEG around 1 implies.

Read guide →

What Is EV/EBITDA?

EV/EBITDA compares a company's enterprise value to its operating earnings, a debt-aware valuation multiple. Learn how it differs from P/E.

Read guide →

What Is the Interest Coverage Ratio?

The interest coverage ratio shows how easily a company can pay interest on its debt. Learn the formula and what a low ratio warns of.

Read guide →

What Is the Price-to-Sales (P/S) Ratio?

The price-to-sales ratio values a company against its revenue, useful when earnings are negative or erratic. Learn how it's calculated and when to use it.

Read guide →

What Are Derivatives? Explained in Plain English

Derivatives sound complicated but the idea is simple: a contract whose value comes from something else, like a stock or an index. A beginner-friendly explanation.

Read guide →

What Are Futures? A Beginner-Friendly Guide

A futures contract is a promise to buy or sell something at a fixed price on a future date. Here's the idea in plain language, with a simple example.

Read guide →

What Are Options? Calls and Puts Explained Simply

An option is the right, but not the obligation, to buy or sell at a set price. Learn calls vs puts in plain English, with an everyday analogy.

Read guide →

What Is an Option Premium and Strike Price?

The premium is the price you pay for an option; the strike is the fixed price in the contract. A simple explanation of the two numbers that define every option.

Read guide →

What Is Open Interest? (In Simple Terms)

Open interest counts the number of derivative contracts still open. Learn what it signals, and how it differs from trading volume, in plain language.

Read guide →

What Is Hedging? Protecting Against Losses, Explained Simply

Hedging means taking a position that offsets the risk of another. Learn the idea with an everyday insurance analogy.

Read guide →

What Is Short Selling? Betting a Stock Will Fall, Explained

Short selling means selling shares you don't own, hoping to buy them back cheaper. Learn how it works and why it's risky, in plain English.

Read guide →

What Is Margin Trading? Borrowing to Invest, Explained

Margin trading means borrowing money from your broker to buy more shares than your cash allows. Learn how leverage magnifies both gains and losses.

Read guide →

What Is DCF Valuation? Explained Without the Math Headache

Discounted cash flow (DCF) estimates what a company is worth today based on the cash it will earn in future. The idea, in plain language.

Read guide →

What Is Working Capital? Explained Simply

Working capital is the money a business needs to run day to day. Learn what it is, why negative working capital isn't always bad, in plain terms.

Read guide →

What Is Goodwill in Accounting? (Simple Explanation)

Goodwill is the premium paid to buy a company above the value of its tangible assets. Learn what it represents and what a goodwill write-off means.

Read guide →

What Is Minority Interest (Non-Controlling Interest)?

Minority interest is the portion of a subsidiary a parent company doesn't own. Learn what it means in consolidated accounts, explained simply.

Read guide →

What Are Contingent Liabilities? (Explained Simply)

Contingent liabilities are potential future obligations that depend on an uncertain event, like a lawsuit. Learn why they sit outside the balance sheet and why they matter.

Read guide →

What Is ROIC (Return on Invested Capital)?

ROIC measures how efficiently a company turns all its invested capital into profit. Learn how it differs from ROE and ROCE, in plain terms.

Read guide →

What Is DuPont Analysis? Breaking Down ROE Simply

DuPont analysis splits ROE into three drivers to show WHY a company's returns are high or low. A plain-English walkthrough.

Read guide →

What Is the Dividend Payout Ratio?

The dividend payout ratio is the share of profit a company pays out as dividends. Learn what a high or low payout signals about a company's stage and strategy.

Read guide →

What Are ASM and GSM? (Stock Surveillance Explained)

ASM and GSM are SEBI/exchange surveillance frameworks that flag unusual or risky stocks with extra curbs. Learn what it means when a stock is placed under them.

Read guide →

What Is a QIP (Qualified Institutional Placement)?

A QIP lets a listed company quickly raise money by selling shares to big institutions. Learn how it works and how it differs from a rights issue, simply.

Read guide →

What Is a Preferential Allotment?

A preferential allotment is a company issuing shares to a chosen few investors. Learn how it works and why it's watched closely, in plain language.

Read guide →

What Are DVR Shares (Differential Voting Rights)?

DVR shares carry different voting rights than ordinary shares, usually fewer votes in exchange for a higher dividend. Learn the trade-off, simply.

Read guide →

What Is a Market Maker?

A market maker continuously quotes buy and sell prices to keep a stock tradable. Learn how they provide liquidity and earn the spread, in simple terms.

Read guide →

What Is the Cash Conversion Cycle?

The cash conversion cycle measures how long a company's cash is tied up before it comes back as sales receipts. Learn why a shorter cycle is better, simply.

Read guide →

What Is the Asset Turnover Ratio?

Asset turnover shows how much revenue a company generates per rupee of assets. Learn what it reveals about efficiency, in plain terms.

Read guide →

Capital Gains on Stocks in India: The Basics (Simple)

Profit from selling shares is a capital gain, taxed differently based on how long you held them. A plain-language overview of short-term vs long-term (not tax advice).

Read guide →

What Is a Company's Annual Report?

The annual report is a company's yearly summary of performance, strategy, and audited financials. Learn what's inside and which sections matter most.

Read guide →

What Is an Auditor's Report? (And a 'Qualified Opinion')

The auditor's report is an independent opinion on whether a company's accounts are fair. Learn what a clean vs qualified opinion means, simply.

Read guide →

What Is Deferred Tax? (Explained Simply)

Deferred tax arises from timing differences between accounting profit and taxable profit. Learn what deferred tax assets and liabilities mean, in plain English.

Read guide →

What Is a Demat Account?

A demat account holds your shares in electronic form, like a bank account for stocks. Learn how it works with a trading account, explained simply.

Read guide →

What Is Corporate Governance? (And Why It Matters to Investors)

Corporate governance is how a company is directed and controlled, and whether it treats all shareholders fairly. Learn why it's a key investing signal.

Read guide →

Try it with your own key

A free API key takes under a minute — no card required.

Get a free API key