Futures and options (F&O) trades settle in one of two ways: index contracts (like Nifty 50 futures) are settled in cash (only profit or loss changes hands) while stock contracts held to expiry are physically settled, meaning actual shares are delivered. In between, futures positions are also settled in cash every single day through mark-to-market.
What gets settled while my position is open?
For futures, settlement doesn't wait for expiry. Every evening, your position is marked to market (MTM): the day's profit or loss, measured against the daily settlement price, is credited to or debited from your account in cash the next day. Arjun holds one Nifty futures contract; the index rises and his position gains ₹4,500 on Tuesday. That ₹4,500 is a real cash credit, not a paper number. On a down day, the debit is just as real.
For options, what settles upfront is the premium. When Divya buys an option for ₹6,000, that premium is paid out to the seller through the clearing corporation's normal funds cycle. Daily MTM in the futures sense doesn't apply to her bought option; her profit or loss is realised when she sells it or when it expires.
All of this is cash settlement. A species of the broader process explained in what is settlement, and how are my trades settled?
What happens at expiry?
This is where the index/stock split matters:
| Contract type | Settlement at expiry | What moves |
|---|---|---|
| Index futures & options (Nifty, Sensex, etc.) | Cash settled | Only the final profit/loss in rupees |
| Stock futures & options (held to expiry) | Physically settled | Actual shares, through your demat account |
Index contracts can only settle in cash. You can't be handed "one Nifty". Open positions are closed out at the final settlement price, which is derived from the underlying index's closing level on expiry day. Closing prices themselves come out of the day's final trading phase, related reading: what is the Closing Auction Session (CAS)?
Stock contracts are different. Since October 2019, every single-stock F&O contract that is still open at expiry results in compulsory physical delivery: futures and in-the-money options turn into an obligation to give or take actual shares, settled through the same delivery machinery as an equity trade. Pay-in of shares, pay-out of funds. If you'd rather never face that, you square off or roll over before expiry.
What physical settlement means for you as a trader, which positions trigger delivery, the margins that ramp up in expiry week, and what to do about it. Is covered in what is physical settlement in stock F&O? This article stays on the mechanics: on the settlement days after expiry, shares and funds move exactly as they would for a Delivery trade.
Who guarantees all this?
The same clearing corporation that stands behind equity trades. It collects margins daily, banks the MTM flows, and guarantees both cash and physical legs, so a defaulting counterparty is never your problem.
Things to keep in mind
- Futures P&L is settled in cash daily. Keep enough funds for MTM debits on losing days, or the position can face margin calls.
- Index F&O can never put shares in (or pull shares out of) your demat account; stock F&O held to expiry will.
- Physical delivery needs real resources (full funds to take delivery, or shares to give) far more than the margin that carried the position.
- Most traders avoid physical settlement entirely by squaring off stock F&O positions before expiry; the choice is yours, but make it deliberately.
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