How to Trade Weekly Options in Indian Markets

What weekly options are, and what changed in India

Weekly options belong to a weekly expiry series. To identify a contract, check its underlying, expiry date, call or put type, strike price and total units. Nifty weekly expiry is Tuesday, with the preceding trading day used for a holiday. A weekly label does not give every contract a fixed remaining life.

NSE/FAOP/68747, dated 25 June 2025, introduced the Tuesday transition for the relevant September 2025 contracts onward. Current Nifty specifications, checked 16 October 2026, show Tuesday weekly expiry. Do not apply an old NSE weekday or assume BSE has the same schedule.

NSE/FAOP/64506 retained weekly options on Nifty and discontinued them on Bank Nifty, FinNifty and Midcap Select. Removing weeklies did not remove every longer cycle: Bank Nifty retains monthly and quarterly options.

The SEBI rules that shaped weekly options

SEBI announced a package of measures for equity index derivatives on 1 October 2024. Several of them changed how weekly options work, and they explain why the list of weekly contracts is shorter than it used to be. The summary below follows news and exchange reporting on the package; read the SEBI circular for the exact wording.

The practical effect for you is that a weekly Nifty contract is bigger than older weekly contracts were, and a buyer needs the full premium in the account before the order. A seller faces higher margin on expiry day, and a calendar spread stops getting margin relief on that day.

Current weekly and monthly expiry mechanics

Nifty weekly expiry is Tuesday and monthly expiry the last Tuesday of the month. Contract listing cycles can include several future expiries, so read the contract instead of assigning every weekly a fixed lifetime.

NSE index options are cash settled using the applicable final settlement value. This differs from the average-price settlement process described for some other contracts. Stock options can create physical-delivery obligations. The Nifty overview also contains inconsistent physical-settlement wording. The cash treatment here follows NSE Clearing and Zerodha’s index-settlement policy.

Use the latest exchange contract file for the quantity and expiry selected. All total quantities in the examples below are assumptions rather than live lot references.

A fully worked Nifty weekly call example

Illustrative weekly call: assume strike 23,500, premium ₹90 and total quantity 65 units. Premium paid is ₹5,850 before costs. The standalone option can lose all of that premium; this is not a forecast or a current quantity quotation.

Assume an actual exit at ₹160 per unit. Gross profit is (160 − 90) × 65 = ₹4,550. The premium is an assumed execution, not inferred from a stated underlying move.

• Example sale proceeds: 160 × 65 = ₹10,400.
• At 0.15%, example sale STT is ₹15.60 before statement rounding.
• Other brokerage and statutory charges still apply; no full after-cost bill is estimated.

If the example instead exits at ₹30, gross loss is (90 − 30) × 65 = ₹3,900 before charges. If final settlement is at or below strike, the call is worthless and the ₹5,850 premium is lost.

A weekly put example, with costs

Weekly options can be bought on either side. Here is a made-up put. Assume a trader buys a put at ₹30 and sells it at ₹45 later, with 65 units. All numbers are examples, not live quotes.

• Premium paid: ₹30 × 65 = ₹1,950.
• Sale proceeds: ₹45 × 65 = ₹2,925.
• Gross profit: ₹2,925 - ₹1,950 = ₹975.
• STT on the sale at 0.15% of premium: ₹2,925 × 0.15 ÷ 100 = ₹4.39.

STT is small beside the gross gain in this example, but brokerage, exchange charges, stamp duty and GST all come on top, and a cheap option has a thin margin for them. The same put sold at ₹32 instead would earn a gross ₹130 and the costs would take a larger share. Use the cost estimate in your journal, then replace it with the contract-note figure.

Buying versus selling weekly options

A long option pays premium and can lose it all. The price can change with the underlying, time remaining, implied volatility and liquidity. Direction alone does not determine the result.

Short options collect premium but can lose far more. A naked short call has unbounded upside exposure; a naked short put has a large loss as the underlying approaches zero. Margin is not a maximum-loss cap.

• Long option: premium and costs at risk before any later delivery exposure.
• Naked short option: potentially large loss and margin needs.
• Matched vertical spread: bounded gross expiry payoff, with separate execution and delivery funding risks.

Holding to expiry versus closing early

A long option that is in the money at expiry is exercised, and the buyer pays STT of 0.15% on the intrinsic value. Intrinsic value is how far the option is in the money. Take the 23,500 call from the earlier example. If the index settles at 23,620, intrinsic value is 120 points. For 65 units that is ₹7,800, so exercise STT is ₹7,800 × 0.15 ÷ 100 = ₹11.70. A trader who sold the option before expiry would instead pay STT on the sale premium. The rate is the same, but the base is different, so the amounts differ unless the price equals intrinsic value.

• Closing before expiry avoids exercise, and you control the exit price.
• Holding to expiry removes spread risk but exposes you to the final settlement value.
• Out-of-the-money options simply expire worthless, with the full premium lost.

Expiry-day habits worth writing down

Expiry day is when premiums move fastest. Plan the exit before you enter, and write the plan in the journal so you can check later whether you followed it.

• Whether you will exit at a fixed time even if the price has not hit your stop.
• The widest bid-ask gap you will accept at your strike.
• Your maximum loss in rupees, which for a long option is the premium paid.
• Whether you will hold any leg through the close.
• Your rule if the holiday calendar moves the expiry day.

Defined-risk spread example on Nifty

Illustrative bull call spread on the same underlying and expiry: buy the 23,500 call for ₹90 and sell the 23,700 call for ₹35, with 65 units per leg. Net debit is ₹55 per unit, or ₹3,575 in total.

Strike width is 200. With both legs intact at expiry, maximum gross gain is (200 − 55) × 65 = ₹9,425, at or above 23,700. Maximum gross loss is the ₹3,575 debit. Costs and settlement funding are separate; a spread is not universally suitable.

Time decay and volatility in expiry week

Theta estimates sensitivity to time passing. Vega estimates sensitivity to implied volatility, the expected swings reflected in an option’s price. That volatility is contract-specific; India VIX cannot directly replace the option’s own input.

Implied volatility can fall after an event, but that is not certain. A spread’s legs can have different sensitivities, so their volatility effects do not necessarily cancel.

Risk Checks for Weekly Options

No fixed risk percentage or lot count is universally appropriate. Review full-premium loss, possible adverse executions, margin and settlement before choosing a position.

• Check a stop’s execution and non-execution risks.
• Review each spread leg separately around expiry.
• Include charges and the possibility of full long-premium loss.
• Record the actual contract, quantity, entry and exit for later review.

Costs, STT and what taxes really apply

From 1 April 2026, sold options use 0.15% STT on premium; bought options exercised use 0.15% of intrinsic value. Same rates on different bases do not mean exercise is automatically more expensive. Other charges remain separate.

Income tax is distinct from transaction tax. Keep transactions, settlements and charges for a qualified tax adviser to assess classification, deductions and loss rules.

Choosing strikes, liquidity and a broker

Read the actual bid-ask spread and available quantity at the intended strike. Open interest or a near-the-money label alone does not guarantee an acceptable exit.

Review the broker’s instrument-specific order controls, margin and expiry policies. An assumed bracket-order feature or a low advertised tariff cannot establish execution reliability.

What to record in a weekly options journal entry

Every weekly trade has more moving parts than a share trade. A complete record lets you separate a bad idea from bad timing or bad execution. Our guides on weekly expiry and expiry-day trading cover the calendar and the day itself.

You enter these details by hand. OneTradeJournal then shows win rate, profit factor, drawdown and time analysis for the trades you recorded. Reports can help you spot patterns such as repeated losses on expiry day. They do not tell you what to trade.

Common mistakes weekly options traders make

• Applying an outdated weekday or quantity.
• Treating a favourable underlying move as a guaranteed option gain.
• Assuming a spread’s volatility effects cancel.
• Ignoring costs or an unfilled exit.
• Sizing from margin or small premium alone.

Weekly options are time-sensitive contracts. A complete review separates the original setup from actual executions, expiry results and charges.

Related Reading

Related reading: weekly versus monthly expiry, premium drivers and settlement obligations.

Sources

• NSE: Nifty contract specification (checked 16 Oct 2026)
• NSE: Weekly withdrawal (checked 16 Oct 2026)
• NSE: Tuesday transition (checked 16 Oct 2026)
• NSE: Bank Nifty longer cycles (checked 16 Oct 2026)
• NSE: STT revision (checked 16 Oct 2026)
• Zerodha: Option STT bases (checked 16 Oct 2026)
• OIC: Bull call spread (checked 16 Oct 2026)
• NSE Clearing: Index exercise settlement (checked 16 Oct 2026)
• Zerodha: Index cash and stock delivery settlement (checked 16 Oct 2026)