Expiry Decision Tree: A Framework for Thinking, Not a Recommendation

Expiry Decision Tree: As expiry nears, the key questions to work through in order are: is the position ITM or OTM, is it an index or a single stock, will you hold to settlement or square off, will settlement be cash or physical delivery, and how does STT differ between the two paths — this page frames those questions without telling you what to decide.

Question 1: Is the position in-the-money or out-of-the-money?

• If out-of-the-money (OTM): the option is on track to lapse worthless if nothing changes. The question becomes whether you expect a move before the close, and whether continuing to hold has more time-decay cost than any remaining chance of a move justifies. See theta acceleration.
• If in-the-money (ITM): the option is on track to be auto-exercised. The next questions — index or stock, hold or square off — become directly relevant, because an ITM finish has real settlement consequences. See ITM settlement.
• If very close to the strike: the outcome may not be knowable until the last-30-minute settlement window forms the final price — this is pin risk, and it is worth explicitly acknowledging the uncertainty rather than assuming either outcome.

Question 2: Is the underlying an index or a single stock?

• Index (Nifty, Bank Nifty, FinNifty, Sensex): settlement, if the option finishes ITM, is in cash — no delivery logistics or large capital call. See cash settlement.
• Single stock: settlement, if ITM, is by physical delivery of shares — this carries a funding requirement for the full value of the shares, not just the intrinsic value. See physical settlement.
• This distinction alone often shapes the rest of the decision, since the operational and capital consequences of holding to expiry differ enormously between the two.

Question 3: Hold to settlement, or square off before the close?

• Considerations for holding: auto-exercise means no manual action is needed for index options; the position converts cleanly to a cash outcome at the settlement price.
• Considerations for squaring off: the exact settlement price is not known in advance and depends on the last-30-minute average, not the current price — squaring off locks in a known, tradable price instead of an averaged one. For stock options, squaring off avoids delivery obligations and the margin they require.
• See the full expiry timeline for exactly when these choices stop being available (3:30 PM on expiry day).

Question 4: If it settles, cash or delivery — and are you prepared for either?

• Cash settlement: requires no preparation beyond understanding the settlement-price mechanism — see settlement price.
• Physical delivery: requires being able to fund (for a long ITM call or short ITM put resulting in a buy) or deliver (for a long ITM put or short ITM call resulting in a sell) the full value of shares at the lot size. Brokers typically require delivery margin in the days before expiry — see physical settlement and the settlement guide.

Question 5: What about STT?

• Securities Transaction Tax is typically levied differently on an option that is exercised/settled at expiry versus one squared off in the market beforehand, with exercised ITM options often attracting a higher effective STT.
• This is a structural tax consideration to be aware of — not a reason by itself to act — and current STT rates should always be checked directly, since tax rules change. See the expiry cheat sheet for where this fits alongside the other expiry facts.

Putting the framework together

Working through these five questions in order — ITM/OTM, index/stock, hold/square-off, cash/delivery, STT — turns "what happens at expiry" from a single confusing event into a short, ordered checklist. None of the answers are prescribed here: the right choice depends on your own position, risk tolerance, capital and objectives, which only you (or your advisor) can weigh. For the underlying mechanics behind each question, see the settlement guide, weekly vs monthly comparison and expiry timeline.

Frequently asked questions

Last reviewed 11 July 2026. Educational content only — not investment advice.