Conceptual · Article 8.1.2

Index Futures.

Q: How are index futures taxed in India?

Index futures profits and losses are non-speculative business income under Section 43(5)(d) of the Income Tax Act — explicitly excluded from speculative transactions. They are taxed at your applicable slab rate (up to 30% plus 4% cess), not as capital gains. ITR-3 is mandatory, even for a salaried investor with a single trade. Losses can be set off against any income except salary and carried forward up to 8 years against future business income. A Section 44AB tax audit may apply based on turnover and profit-declaration rules. STT of 0.02% applies on the sell side, and all transaction costs are deductible as business expenses.

Q: What happened to Bank Nifty weekly options and futures?

From 20 November 2024, SEBI restricted weekly expiry contracts to one benchmark index per exchange. Bank Nifty, FinNifty and Nifty Midcap Select all lost their weekly contracts. Only Nifty 50 on NSE (now expiring Tuesday) and Sensex on BSE (Friday) retain weekly expiries. Bank Nifty monthly futures and options continue to trade normally. Bank Nifty alone had accounted for roughly 47.5% of NSE's weekly options turnover, so its removal sharply reduced total F&O volumes.

A Hedge Dressed as a Bet — and How SEBI Just Rewrote the Rules.

Published as on 22 July 2026

An index future is an exchange-traded contract to buy or sell a stock market index — Nifty 50, Bank Nifty, Sensex — at a fixed price on a future date. Because you cannot deliver an index, every one is cash settled: at expiry, only the rupee difference between your entry price and the closing level changes hands. Its most valuable use is not the directional bet most retail traders chase, but hedging — letting a large equity holder neutralise a market fall without selling a single share or triggering capital gains. SEBI's October 2024 overhaul tripled lot sizes and stripped weekly expiry from all but one index per exchange. And a tax surprise catches many: F&O gains are non-speculative business income taxed at your slab rate, not capital gains.

Cash Settled

At Expiry

Nifty 50 Lot Size

Slab Rate

Non-Spec Business

93% Lose

Individual F&O

Executive Summary · Page 2

Executive Summary · 6 Findings

An index future lets you take a position on the whole market in one trade — a single contract standing in for fifty stocks or thirty. That efficiency has two faces. In the hands of a portfolio owner it is a precision hedging tool: sell a few lots and a market crash costs you far less, without selling a share. In the hands of a leveraged retail speculator it is a fast way to lose money — as SEBI's own data makes uncomfortably clear.

Covers what an index future is and why cash settlement changes everything, SEBI's landmark 2024-25 reforms (lot sizes, weekly-expiry curbs, the Thursday-to-Tuesday shift), how SPAN+ELM margin and daily mark-to-market work, the cost-of-carry that prices the basis, beta-weighted portfolio hedging with a worked example, taxation as non-speculative business income at slab rate, the index-versus-stock-futures distinction, and six questions Indian investors ask.

Key Findings

A contract on an index — always settled in cash.

An index future is an exchange-traded agreement on the future level of an index like Nifty 50 or Sensex. You cannot deliver an index, so at expiry there is no exchange of shares — only cash. Your profit or loss is (final settlement price − entry price) × lot size × lots. That final price is the VWAP of the index over the last 30 minutes of trading, an averaging designed to block manipulation.

The natural use is hedging, not speculation.

Index futures are best suited to protecting a diversified equity portfolio against broad market drawdowns — around budgets, election results and earnings season — without selling holdings and crystallising capital gains. Institutions, PMS managers and large investors sell index futures to neutralise market risk, then unwind once the risk event passes.

SEBI's 2024-25 reforms reshaped the market.

From 20 November 2024, lot sizes roughly tripled (Nifty 50 from 25 to 75, since revised to 65) to lift contract values into the ₹15–20 lakh band, and weekly expiry was cut to one index per exchange. Nifty 50 (NSE) shifted from Thursday to Tuesday expiry in September 2025; Sensex (BSE) keeps Friday. Monthly options volumes fell from 397 million to 68 million within four months.

Leverage cuts both ways — margin and daily MTM.

Initial margin (SPAN + ELM) on Nifty futures runs roughly 10–15% of contract value, so a ₹15.6 lakh position needs about ₹1.5–2.3 lakh. Positions are marked to market daily: gains credited, losses debited. A move against you erodes margin, and a margin call must be met or the broker squares you off. Losses can exceed the amount deposited.

Taxed as non-speculative business income at slab rate.

Under Section 43(5)(d), index futures gains and losses are non-speculative business income — not capital gains — taxed at your slab rate. ITR-3 is mandatory, even for one trade. Losses set off against any income except salary and carry forward 8 years; a Section 44AB audit may apply on turnover/profit rules. STT of 0.02% applies on the sell side.

Most individual F&O traders lose money.

SEBI's September 2024 study found 93% of individual F&O participants lost money over FY22–FY24, with aggregate losses above ₹1.8 lakh crore. The reforms were a direct response. Index futures deserve respect, not enthusiasm: use them to hedge a real portfolio or express a disciplined macro view — never as a lottery ticket.

At A Glance

Metric	Value	Detail
Underlying	Market index	Nifty, Sensex
Settlement	Cash only	No delivery
Nifty Lot	65	Feb 2026
Initial Margin	~10–15%	SPAN + ELM
Primary Use	Portfolio hedge	Beta-weighted
Weekly Expiry	Nifty Tue / Sensex Fri	One per exchange
Tax	Slab Rate	Non-spec business
STT (sell)	0.02%	On trade value

Exhibit 01: A Beta-Weighted Nifty Hedge

Input	Value	Effect
Portfolio	₹54 lakh	Beta 1.1
Contract	₹15.6 lakh	24,000 × 65
Lots to sell	≈ 4	(54L × 1.1) ÷ 15.6L
If Nifty −10%	+₹6.24 L	Futures gain
Portfolio	−₹5.94 L	Paper loss offset

*Illustrative, around FY 2025-26. A 4-lot short more than offsets the portfolio's decline — with no shares sold and no capital gains triggered. Beta drifts and must be recalculated; index futures hedge only market-wide risk, not stock-specific risk.

The Opening · Page 3

The Opening

An index future compresses an entire market into a single tradable line. Instead of buying or shorting fifty Nifty constituents, you take one position on the index itself, priced today for a level to be settled on a future date. And because no one can hand over "the Nifty" at expiry, the contract is cash settled — the buyer and seller simply exchange the rupee difference between the contracted price and where the index actually closes. That one design choice removes shares, demat, delivery and auction risk from the equation, leaving a clean bet on direction, or a clean shield against it.

"The same contract that protects a ₹5-crore portfolio in the hands of a disciplined manager quietly empties a ₹5-lakh account in the hands of a leveraged speculator. The instrument is neutral. The intent is everything."
A Tool, Not a Wager

The mechanics. Index futures are leveraged: you post margin — roughly 10–15% of contract value — not the full amount, then face daily mark-to-market that credits gains and debits losses to your account. Hold to expiry and you settle against the Final Settlement Price, the VWAP of the index over the last 30 minutes of trading. Most traders never get there; they square off or roll the position into the next expiry before the close.

The 2024-25 context. After years of explosive retail F&O growth, SEBI acted. From November 2024 it tripled lot sizes, restricted weekly expiries to one benchmark index per exchange, and layered on expiry-day margins — all to blunt speculation. The message was blunt: this is a market for hedgers and professionals, not for weekly-lottery punters.

The Honest Boundary: Index futures are NOT a wealth-creation engine — leverage magnifies losses as fast as gains. They are NOT for hedging a portfolio you do not own — that is simply speculation. They are NOT a "set and forget" holding — daily MTM demands active margin management. They ARE the most capital-efficient way to hedge broad market risk, and a legitimate vehicle for a disciplined macro view, for those who respect the leverage.

Structure

Part I

What an Index Future Is, Cash Settlement & Where It Fits

Part II

SEBI's 2024-25 Reforms, Margins & Slab-Rate Tax

Part III

Pricing, Portfolio Hedging & Index vs Stock Futures

Part IV

The Verdict: A Shield, or a Gamble — Your Choice

Use If

✓ Hedging a real equity portfolio

✓ Capital to sustain MTM swings

✓ A disciplined macro view + stops

✓ Can monitor margin daily

Do NOT Use If

✕ Chasing weekly-expiry lottery

✕ No underlying position to hedge

✕ Cannot answer a margin call

✕ Limited, non-risk capital

Part I

What an Index Future Is, Why Cash Settlement Matters, and Where It Fits

The active index contracts on NSE and BSE; how cash settlement — with a VWAP-based final price — removes the delivery machinery of stock futures; and where a leveraged index position belongs in a portfolio: as a hedge and a macro instrument, not a core holding.

Part I · Page 4

The Active Index Contracts

Index	Exchange	Character
Nifty 50	NSE	Most liquid F&O
Nifty Bank	NSE	Banking sector
FinNifty	NSE	Financials
Sensex	BSE	30 large-caps
BSE Bankex	BSE	Banks (BSE)

Nifty 50 futures are the deepest, most liquid derivative in India. Alongside them trade Nifty Bank, FinNifty, Nifty Midcap Select and Nifty Next 50 on NSE, and Sensex, Bankex and BSE MidCap Select on BSE — each a basket, each cash settled.

Why Cash Settlement Changes Everything

No Shares, No Delivery, No Auction Risk

You cannot deliver an index, so P&L is settled in cash: (Final Settlement Price − Entry Price) × Lot Size × Lots. The final price is the VWAP of the index over the last 30 minutes on expiry day — averaged to prevent manipulation. That erases the physical-delivery machinery of stock futures: no demat shares, no delivery-margin escalation, no auction risk for shorts.

Where Index Futures Fit

Purpose	Instrument	Fit
Hedge market risk	Index futures	Natural fit
Macro directional	Index futures	Disciplined only
Single-stock bet	Stock futures	Company risk
Core wealth	Equity / funds	Long-term growth
Weekly punting	Options	Wealth destroyer

An index future is not a buy-and-hold asset — it expires. It is a tool with a job: shield an equity portfolio around a risk event, or express a defined macro view for a defined window. The guiding principle is intent-matching — hold the future only as long as the hedge or the thesis is live.

Appropriate uses: a ₹50 lakh equity portfolio hedged with short Nifty futures before an election result; a fund manager neutralising benchmark risk over earnings season; an arbitrageur capturing a wide cash-futures basis. Inappropriate: a first-time trader buying weekly Nifty lots with rent money — that is not investing, it is the behaviour SEBI's reforms target.

Part II

SEBI's 2024-25 Overhaul, How Margin and Mark-to-Market Work, and Slab-Rate Tax

Why lot sizes tripled and weekly expiry all but vanished; how SPAN+ELM margin and daily mark-to-market keep leverage on a leash; and why every rupee of index-futures gain is non-speculative business income taxed at your slab rate, not capital gains.

Part II · Page 6

The 2024-25 Reforms

Index	Pre-Nov 24	Now
Nifty 50	25	65
Nifty Bank	15	30
FinNifty	25	60
Sensex	10	20

Lot sizes revised periodically to keep contract values in the ₹15–20 lakh band. Nifty 50 went 25 → 75 (Nov 2024) → 65 (Dec 2025). Verify current lots on NSE before trading.

Weekly Expiry — Cut to the Bone

From 20 Nov 2024, only one index per exchange keeps weekly expiry: Nifty 50 on NSE (now Tuesday, shifted from Thursday in Sep 2025) and Sensex on BSE (Friday). Bank Nifty, FinNifty and Midcap Select lost theirs. Monthly options contracts fell from 397 million (Oct 2024) to 68 million (Feb 2025).

Extra Guardrails

An added 2% Extreme Loss Margin on short options on expiry day; calendar-spread margin benefit removed on the near-month expiry (Feb 2025); and intraday position-limit monitoring (5% of OI per client) from Apr 2025.

Margin & Mark-to-Market

SPAN + ELM — Lower Than Stocks

SPAN uses a 99% VaR over a 1-day horizon (versus 2 days for stock futures); ELM is 3% of notional (versus 5%-plus). Total initial margin runs ~10–15% of contract value — about ₹1.5–2.3 lakh on a ₹15.6 lakh Nifty position.

Daily Mark-to-Market — the Leverage Leash

Every day, unrealised gains are credited and losses debited. A position moving against you erodes margin; fall below maintenance and a margin call must be met immediately, or the broker squares you off. Because you control ₹15.6 lakh for ~₹2 lakh, losses can exceed the amount deposited.

Taxation (FY 2025-26)

Non-Speculative Business Income

Under Section 43(5)(d), index futures on NSE/BSE are excluded from speculative transactions. Gains and losses are non-speculative business income, taxed at your slab rate (up to 30% + 4% cess) — never capital gains. ITR-3 is mandatory, even for a single salaried trade.

Set-Off, Carry-Forward & Audit

Losses set off against any income except salary (including capital gains), and carry forward 8 years against future business income. A Section 44AB tax audit may apply on turnover/profit rules; turnover is the sum of absolute trade-level P&L. STT of 0.02% applies on the sell side; all costs are deductible.

Part III

How Futures Are Priced, Beta-Weighted Hedging, and Index versus Stock Futures

The cost-of-carry that sets the basis and why it converges to zero at expiry; the beta-weighted formula that sizes a portfolio hedge, worked end to end; and the settlement, margin and risk differences that separate index futures from single-stock contracts.

Part III · Page 8

Pricing: The Cost of Carry

Why Futures Trade at a Premium

Futures Price ≈ Spot × (1 + risk-free rate × time) − dividends × time. Nifty's dividend yield is low (~1–1.5%), so futures usually sit at a modest premium — the basis — which decays to zero by expiry as futures meet spot. When the basis gets too wide, arbitrageurs buy cash and sell futures, pulling it back.

Beta-Weighted Hedging

Sizing the Hedge

Lots to sell = (Portfolio Value × Beta) ÷ Contract Value. For ₹54 lakh at beta 1.1 against a ₹15.6 lakh contract: (54,00,000 × 1.1) ÷ 15,60,000 ≈ 3.8 → sell 4 lots. If Nifty falls 10%, the short earns ₹2,400 × 65 × 4 = ₹6.24 lakh, offsetting a ~₹5.94 lakh portfolio paper loss — no shares sold, no capital gains triggered.

Hedging caveats: beta drifts and must be recalculated; index futures cover only systematic (market-wide) risk, never stock-specific shocks; mid/small-cap portfolios correlate poorly with Nifty 50 and are better hedged with Nifty Midcap Select futures; and the hedge carries the basis as a small carry cost.

Index vs Stock Futures

Feature	Index	Stock
Settlement	Cash	Delivery
Underlying	Index	One company
ELM margin	3%	5%+
SPAN VaR	1 day	2 days
Stock risk	None	Yes
Weekly expiry	Nifty / Sensex	None
Tax	Slab	Slab

Both are non-speculative business income and both charge 0.02% STT on the sell side. The real divides are settlement (cash vs physical delivery), diversification (an index dilutes company-specific shocks), and margin (index futures are cheaper to carry).

Rolling at Expiry

A hedge or view rarely ends neatly on expiry day. To keep a position alive, traders roll over: close the near-month contract and open the next, paying the spread and fresh costs. Plan rolls in advance — the Nifty's Tuesday expiry (Sensex Friday) sets the calendar.

Part IV

The Verdict

A precision shield, or a leveraged gamble. The contract does not decide — you do.

Part IV: The Verdict · Page 10

30-Second Summary

An index future is an exchange-traded, cash-settled contract on a market index — Nifty 50, Bank Nifty, Sensex. There are no shares at expiry; only the rupee difference against the last-30-minute VWAP changes hands. It is leveraged: you post ~10–15% margin and face daily mark-to-market. Its highest use is hedging — selling beta-weighted lots to protect an equity portfolio around a risk event, without selling holdings or triggering capital gains.

SEBI's 2024-25 reforms tripled lot sizes, cut weekly expiry to one index per exchange, and shifted Nifty's expiry to Tuesday — all to curb the speculation behind ₹1.8 lakh crore of individual F&O losses. Tax is unambiguous: gains and losses are non-speculative business income at your slab rate under Section 43(5)(d), reported on ITR-3, with set-off (except salary), 8-year carry-forward and a possible Section 44AB audit. Use index futures to hedge a real portfolio or express a disciplined view — never as a weekly lottery.

"Ask one question before you trade an index future: what am I protecting? If the answer is a real portfolio you own, this is one of the finest tools in Indian markets. If the answer is nothing — you are just guessing direction with borrowed size — the odds in SEBI's own data are 93% against you. The contract is the same. Only the intent is different."
The Final Orientation

The Bottom Line: Treat index futures as a hedging and macro instrument, not a holding. Size hedges with the beta formula and recalculate beta as it drifts. Keep enough free capital to meet daily MTM and margin calls — losses can exceed your deposit. Budget for STT, exchange costs and roll spreads, and remember every rupee of P&L is slab-rate business income needing ITR-3, not a capital-gains form. Verify current lot sizes and expiry days on the exchange before every trade. And if you have no portfolio to protect and no defined thesis, the honest move is not to trade.

ADWIZR · July 2026

Decision Rules

Use Correctly As

✓ A beta-weighted portfolio hedge

✓ A defined macro view with stops

✓ A cash-futures basis arbitrage

✓ Benchmark-risk management (PMS)

Misuse Destroys Value

✕ Weekly-expiry speculation

✕ Hedging a position you don't own

✕ Trading without margin buffer

✕ Rent money or non-risk capital

Three Misconceptions

What Traders Get Wrong

(1) "Index futures are safe because they're diversified." No single-stock risk, but full leverage risk remains. (2) "F&O gains are capital gains." They are non-speculative business income at slab rate, on ITR-3. (3) "My margin is my maximum loss." Daily MTM means losses can exceed the amount deposited.

vs Nifty Options

Obligation vs Right

A future obligates both sides; both post margin and face open-ended MTM. An option gives the buyer a right for a fixed premium (capped loss), while the seller takes margin and large downside. Different risk shapes for different jobs.

Cash

Settlement

VWAP, last 30 min

~10–15%

Initial margin

SPAN + ELM

Slab

Tax rate

Non-spec, ITR-3

Investor FAQ

Questions Indian Investors Ask

Six questions, answered directly.

Investor FAQ · Page 12

Frequently Asked Questions

Q1 What is the difference between index futures and stock futures?

The core difference is settlement. Stock futures are physically settled — the buyer receives actual shares and the seller delivers them. Index futures are cash settled: you cannot deliver an index, so only the rupee difference between your entry price and the final settlement price changes hands. Index futures also carry no single-company risk, attract a lower Extreme Loss Margin (3% versus 5%-plus for stocks), and use a 1-day SPAN VaR horizon versus 2 days. Tax treatment is identical: both are non-speculative business income at slab rate.

Q2 How are index futures taxed in India?

Profits and losses are non-speculative business income under Section 43(5)(d) — explicitly excluded from speculative transactions — taxed at your slab rate (up to 30% plus 4% cess), not as capital gains. ITR-3 is mandatory, even for a single salaried trade. Losses set off against any income except salary and carry forward 8 years against future business income. A Section 44AB audit may apply on turnover/profit rules. STT of 0.02% applies on the sell side, and all transaction costs are deductible as business expenses.

Q3 What happened to Bank Nifty weekly options and futures?

From 20 November 2024, SEBI restricted weekly expiry to one benchmark index per exchange. Bank Nifty, FinNifty and Nifty Midcap Select all lost their weekly contracts. Only Nifty 50 on NSE (now expiring Tuesday) and Sensex on BSE (Friday) retain weekly expiries. Bank Nifty monthly futures and options continue to trade normally. Because Bank Nifty had accounted for roughly 47.5% of NSE's weekly options turnover, its removal sharply reduced total F&O volumes.

Q4 How do I use Nifty futures to hedge my equity portfolio?

Sell (short) Nifty futures against your holdings. The number of lots is (Portfolio Value × Portfolio Beta) ÷ Nifty Futures Contract Value. For a ₹54 lakh Nifty-correlated portfolio with beta 1.1 and a ₹15.6 lakh contract, that is (54,00,000 × 1.1) ÷ 15,60,000 ≈ 3.8, so sell 4 lots. If the market falls, gains on the short futures offset the portfolio's paper loss — without selling shares or triggering capital gains. Caveats: it hedges only systematic risk, beta drifts and must be recalculated, and mid/small-cap portfolios are better hedged with Nifty Midcap Select futures.

Q5 How does the final settlement price work on Nifty expiry day?

On expiry day, the Final Settlement Price is the volume-weighted average price (VWAP) of the underlying index over the last 30 minutes of trading. All open index futures positions are settled against it in cash — profits credited or losses debited the following day. The 30-minute averaging window is deliberately designed to prevent last-minute manipulation of the settlement level. Following SEBI's reforms, NSE index derivatives now expire on Tuesday and BSE's Sensex on Friday.

Q6 Are index futures safer than stock futures?

They remove some risks but not the core danger of leverage. Index futures carry no company-specific risk because the index is diversified, require a lower Extreme Loss Margin (3% versus 5%-plus), and involve no physical delivery. But like all futures they are leveraged and marked to market daily, so a sharp adverse move can cost far more than the margin deposited. SEBI's September 2024 study found 93% of individual F&O participants lost money over FY22–FY24, with aggregate losses exceeding ₹1.8 lakh crore. "Safer" is relative, not absolute.

Key Terms & Definitions

Index Future

An exchange-traded contract to buy or sell a stock market index — Nifty 50, Bank Nifty, Sensex — at a fixed price on a future expiry date. Because an index cannot be delivered, it is always cash settled: only the rupee difference between the contracted price and the settlement level changes hands.

Cash Settlement

Settlement in money rather than shares. At expiry, P&L = (Final Settlement Price − Entry Price) × Lot Size × Lots, paid in cash. The Final Settlement Price is the VWAP of the index over the last 30 minutes of trading, averaged to prevent manipulation.

Beta-Weighted Hedge

Sizing an index-futures hedge by the portfolio's sensitivity to the index. Lots to sell = (Portfolio Value × Beta) ÷ Contract Value. Because beta drifts over time, the hedge must be recalculated periodically, and it neutralises only market-wide, not stock-specific, risk.

SPAN + ELM Margin

Initial margin on a futures position. SPAN is a 99% VaR estimate (1-day horizon for index futures); ELM (Extreme Loss Margin) is 3% of notional for indices. Together they run roughly 10–15% of contract value — the capital that unlocks the leverage.

Mark-to-Market (MTM)

The daily revaluation of an open futures position. Gains are credited and losses debited to your account each day; if margin falls below maintenance, a margin call must be met immediately or the broker squares off the position. Losses can exceed the amount deposited.

Non-Speculative Business Income

The tax classification of exchange-traded F&O under Section 43(5)(d). Gains and losses are business income taxed at the investor's slab rate — never capital gains — reported on ITR-3, with set-off against any income except salary and 8-year carry-forward.