Physical Settlement in Stock F&O: What Happens to Futures and ITM Options at Expiry

Hold a stock future into expiry on NSE and you don’t get a cash difference credited and forgotten. You get shares, or you owe them. That’s physical settlement in stock F&O, and it catches a surprising number of traders every month, usually the ones who bought a cheap call, watched it go in the money on the last day and then found a delivery obligation worth many times the premium they paid.

This guide walks through which positions turn into delivery, how much you have to pay or hand over, the margin that builds up in the last four days, and the few ways to avoid an unplanned delivery. The rules quoted here come straight from SEBI circulars and NSE Clearing’s own FAQs, linked in each section. The worked examples use a made-up stock and made-up prices so the arithmetic is easy to follow.

How physical settlement in stock F&O came about

For years, stock futures and options in India were mostly cash settled. SEBI changed that in two steps. Its April 11, 2018 circular on the framework for stocks in the derivatives segment said physical settlement of stock derivatives would be made mandatory in a phased, calibrated manner. The stated aim was better alignment between the cash and derivatives markets and market integrity.

The second step was the SEBI circular of December 31, 2018, which made physical settlement mandatory for all stock derivatives. The stocks still being cash settled were ranked by average daily market capitalisation for December 2018. The bottom 50 moved first, from the April 2019 expiry. The next 50 followed from the July 2019 expiry, and everything else moved from the October 2019 expiry. NSE later reminded members in a February 2021 circular that physical settlement has been compulsory for all stock derivatives from the October 2019 expiry onwards.

So if you trade any stock future or stock option on NSE today, this applies to you. Index contracts such as Nifty options are a different story, since there’s no single share to hand over; the circulars above deal only with stock derivatives.

Which positions turn into delivery at expiry

NSE Clearing spells this out in its settlement FAQ. Two kinds of positions go to delivery: every futures position still open after trading closes on expiry day, and every in-the-money (ITM) option that is exercised and assigned. Out-of-the-money options simply expire worthless and create nothing.

Here’s how each position maps to an obligation:

The quantity is always the market lot multiplied by the number of contracts that go to delivery. One lot is one lot’s worth of shares, no rounding.

The long put line trips people up. If you bought a put as a bet that the stock would fall, and it closes in the money, the exchange treats you as a seller. You must have those shares in your demat account. If you don’t, you’re short on delivery, and that’s an expensive problem we’ll come to.

One more detail from the same FAQ. There used to be a “Do Not Exercise” facility that let holders of stock options opt out of exercise on expiry day. NSE Clearing says it was discontinued from the March 2023 expiry. Today, an ITM stock option held to expiry is exercised. There’s no button to make it go away.

The money side: pay-in, pay-out and timing

Delivery obligations from F&O don’t sit in a separate box. According to NSE Clearing’s settlement FAQ, the delivery settlement of futures and options contracts is clubbed with delivery obligations in the capital market segment and runs on the same T+1 cycle. Funds and securities pay-in are due by 11:00 on T+1, and pay-out happens by 13:30 on T+1, with T being expiry day.

In practice that means the cash for a buy obligation, or the shares for a sell obligation, has to be with your broker before their own deadline, which is earlier than the clearing corporation’s. Brokers set their own cut-offs, so check yours.

Worked example: a long call that finishes in the money

Take a hypothetical stock, ABC Ltd, with a lot size of 500 shares. These numbers are invented for illustration.

• You buy 2 lots of the ABC 1,000 call for a premium of ₹12 per share. Premium paid: 2 × 500 × ₹12 = ₹12,000.
• On expiry day ABC settles at ₹1,040. The call is ₹40 in the money, so it’s exercised.
• Your obligation: receive 1,000 shares (2 × 500) and pay the strike price for them, 1,000 × ₹1,000 = ₹10,00,000.

Read that again. A ₹12,000 bet has become a ₹10 lakh purchase. The shares are worth ₹10.4 lakh at the settlement price, so on paper you’re up ₹40,000 before the premium. But you need ₹10 lakh in the account on time. If the money isn’t there, you’re relying on whatever your broker’s shortfall policy says, and that’s not where you want to be on expiry day.

A cheap out-of-the-money call can turn into a full-size share purchase overnight. The premium was the cost of the bet; the strike value is the cost of the delivery.

Worked example: a long put without the shares

Same stock, same lot size. You buy 1 lot of the ABC 1,000 put. ABC settles at ₹960 on expiry, so the put is ₹40 in the money and gets exercised. You now have to deliver 500 shares and will be paid 500 × ₹1,000 = ₹5,00,000.

If you already own 500 ABC shares, fine: they go out, ₹5 lakh comes in, and the put worked like a sale at ₹1,000. If you don’t own them, you’ve failed to deliver. NSE Clearing’s FAQ says a seller’s failure to deliver leads to a buy-in auction, and anything not filled in the auction is closed out. For the normal market, it puts the close-out price at the highest price across exchanges from the trade day to the auction day, or 20% above the settlement price on the auction day, whichever is higher. That penalty pricing can wipe out the gain on the put and more. We cover the mechanics in our piece on the short delivery auction on NSE.

Delivery margin in the last four days

The clearing corporation doesn’t wait until expiry to ask for money. NSE Clearing’s risk management FAQ says delivery margin is levied at the client level, on the lower of potential deliverable positions or in-the-money long option positions, starting four days before expiry. The positions are worked out daily, and the margin is equivalent to what the capital market segment would charge on the same shares.

It’s collected in steps. With E as expiry day:

• 10% of the computed delivery margin at the end of E-4
• 25% at the end of E-3
• 45% at the end of E-2
• 70% at the end of E-1

After expiry, positions that have turned into delivery attract the normal capital market margins, which the FAQ lists as VaR, extreme loss and mark-to-market margins. The same FAQ notes that VaR margin for Group I stocks is 6 sigma, subject to a minimum of 9%.

Back to the ABC call. Say the full delivery margin on that potential 1,000-share position works out to ₹2,00,000 (a made-up figure for the example). The staggered schedule asks for ₹20,000 at the end of E-4, ₹50,000 at E-3, ₹90,000 at E-2 and ₹1,40,000 at E-1. That’s on top of whatever you already have blocked for the F&O position. Traders who see their available margin shrink through expiry week, without adding a single trade, are usually looking at this.

Netting with your cash market trades

There’s a useful offset built into the system. NSE Clearing’s FAQs say F&O delivery obligations on expiry can be netted against capital market obligations, and margin benefit is given to the extent the positions offset. The condition is that the chain of client code, trading member, clearing member and custodian (UCC, TM, CM, CC) is the same in both segments. If your broker uses a different clearing member for F&O than for cash, or you’re an institutional investor, the netting doesn’t apply.

A simple case: you’re long 1 lot (500 shares) of ABC futures and, on expiry day, you sell 500 ABC shares in the cash market. The futures position creates a 500-share receivable, the cash sale creates a 500-share deliverable, and, if the conditions above are met, the two net off for settlement. Note that netting is only for settlement. The settlement FAQ says Securities Transaction Tax and stamp duty are still computed and levied segment by segment.

Why your broker may square you off anyway

You might expect your broker to just let positions run into delivery. Many don’t, or they restrict it. NSE’s February 2021 circular tells members to make physical settlement available to clients who want it, without a default of mandatory or automated square-off. It also allows brokers to put risk management measures in their internal policies, as long as clients are told.

So what happens to you depends on your broker. Its policy might, for example, square off ITM stock options or open futures close to expiry when the funds or shares aren’t in place. That’s a broker decision, not an exchange one, so read the policy before expiry week rather than during it.

A short checklist for expiry week

• Know your lot size. The delivery quantity is lot size times contracts. Convert that into rupees at the strike before you hold anything into expiry.
• Watch for ITM long options. These are the ones that surprise people, because the premium was small and the delivery isn’t.
• Check long puts against holdings. A long ITM put means you deliver shares. No shares, and you’re looking at the auction.
• Budget for E-4 to E-1 margin. The 10%, 25%, 45% and 70% steps come out of your margin even if you do nothing.
• Roll or close early if you don’t want delivery. Closing the position before expiry ends the obligation. If you want the exposure in the next month, our guide to options trading for beginners in India covers how contracts and expiries work.
• Read your broker’s square-off policy. It decides what happens if you don’t act.

Physical settlement isn’t a trap if you plan for it. It only bites the trader who treats a stock option as a lottery ticket and forgets it has shares behind it.

When delivery is actually the plan

None of this means delivery is bad. Some traders use it on purpose. A short put that ends in the money is effectively a buy order at the strike, which suits someone who wanted the stock at that price anyway. A covered call writer who holds the shares is fine with delivery if the call is assigned; that’s how the strategy is meant to finish, as we explain in our covered call strategy guide. And a long future held into expiry is just a delayed share purchase.

The common thread is preparation. If you know the shares or cash are ready, physical settlement in stock F&O is simply how the contract ends. If you don’t, the time to act is before the last four days, not after expiry.

Disclaimer: This article is for information and education only and is not investment advice or a recommendation to buy or sell any security or derivative. Rules are summarised from SEBI circulars dated April 11, 2018 and December 31, 2018, NSE’s circular of February 10, 2021 and NSE Clearing’s settlement and risk management FAQs, all linked above; exchanges and brokers can change these rules, so check the latest circulars and your broker’s policy. ABC Ltd is hypothetical, and every price, premium, lot size and margin figure for it is example data made up for illustration. Derivatives trading carries a high risk of loss; consult a SEBI-registered investment adviser before making investment decisions.