Share Market Expiry Days 2026: Nifty, Sensex Schedule

Key Takeaways

• Nifty 50 weekly expiry: every Tuesday on NSE (changed from Thursday, effective September 1, 2025)
• Sensex weekly expiry: every Thursday on BSE (changed from Tuesday, same effective date)
• Bank Nifty, FinNifty, and Nifty Midcap Select no longer have weekly options; they trade monthly only
• NSE monthly expiry: last Tuesday of the month; BSE Sensex monthly expiry: last Thursday
• If an expiry day falls on a market holiday, expiry moves to the previous trading day
• Data source: NSE India, BSE India, and SEBI circulars as of July 2026

What Is an Expiry Day in the Stock Market?

An expiry day is the final trading day of a futures or options (F&O) contract. Once a contract expires, it settles in one of two ways. Understanding options vs stocks first helps clarify why expiry even matters for derivatives but not for straightforward equity holdings.

Cash Settlement: The difference between the contract price and the final market price is settled in cash. This applies to index options like Nifty and Sensex.

Physical Settlement: The actual underlying shares are delivered. This applies to most individual stock futures and options in India.

The 2025 Expiry Day Overhaul: What Changed and Why

This is the part most guides get wrong or skip entirely, and it matters because the schedule has changed twice in recent years.

November 2024: SEBI's first circular restricted each exchange to offering weekly expiry contracts on only one benchmark index, aimed at curbing excessive short-tenor speculation that regulatory data linked to heavy retail losses. NSE retained Nifty 50 as its sole weekly contract; BSE retained Sensex. Bank Nifty, Nifty Midcap Select, and Nifty Financial Services lost their weekly options and became monthly-only contracts.

September 2025: A second, more significant change followed. SEBI approved NSE and BSE swapping their weekly expiry days entirely, effective September 1, 2025. NSE moved Nifty 50's weekly expiry from Thursday to Tuesday, while BSE moved Sensex's weekly expiry from Tuesday to Thursday. Contracts expiring on or before August 31, 2025 kept their original schedule; anything expiring after that date follows the new Tuesday/Thursday split.

The goal behind both changes was the same: spreading options activity across the week rather than concentrating it on a single day, reducing the kind of bunched volatility and speculative pressure SEBI's research linked to substantial retail trading losses.

Current Expiry Day Schedule (2026)

This table reflects the schedule in effect since September 1, 2025.

Source: NSE India, BSE India, SEBI circular (effective September 1, 2025). If an expiry day falls on a declared market holiday, the expiry shifts to the previous trading day.

Types of Expiry Days in the Stock Market

Weekly Expiry: Applies only to the two benchmark indices retained by each exchange, Nifty 50 on NSE (Tuesday) and Sensex on BSE (Thursday).

Monthly Expiry: The last Tuesday of the month on NSE, or the last Thursday on BSE for Sensex-linked contracts. This applies to index options without a weekly cycle and to all individual stock derivatives.

Quarterly and Longer-Dated Expiry: Used for longer-duration index options contracts, following the same monthly expiry day convention as the underlying index.

Why the Expiry Schedule Changed

SEBI's research pointed to a specific problem: heavy concentration of short-tenor options activity on a single weekday was amplifying volatility and contributing to steep retail losses, with regulatory data showing the large majority of individual F&O traders losing money over multi-year periods. Spreading Nifty and Sensex expiries across different days (Tuesday and Thursday) was designed to distribute this activity more evenly through the week, reduce arbitrage opportunities between exchanges, and ease operational load on clearing and settlement systems.

How Expiry Days Affect Traders

Expiry days behave differently from a typical trading session in a few consistent ways.

Price Movements: Sharp, sometimes erratic price swings are common as traders roll over positions to the next contract cycle and adjust hedges ahead of settlement.

Liquidity and Open Interest: Trading volume and open interest typically spike on expiry day itself, as both retail and institutional participants close, roll, or adjust positions before contracts lapse.

Option Premiums and Time Decay: Time decay (theta) accelerates sharply as expiry approaches, and out-of-the-money options can lose most of their remaining value within the final trading hours. Tracking the PCR ratio alongside open interest data can offer additional context on sentiment heading into an expiry session. Knowing the exact stock market timings in India also matters more than usual on expiry day, since the final trading hour tends to see the sharpest moves.

Nifty 50 vs Sensex: Expiry Day Comparison

Nifty 50 (NSE, Tuesday expiry): Tracks the top 50 companies across sectors on NSE, generally showing high liquidity and somewhat lower single-session volatility than Bank Nifty historically did.

Sensex (BSE, Thursday expiry): Tracks 30 major companies on BSE. Since the September 2025 change, Thursday has become the primary weekly settlement point for BSE index options, distinct from NSE's Tuesday cycle.

Running both on separate days means traders following both exchanges now have two distinct weekly expiry windows to plan around instead of one shared day.

How to Adjust Positions Around Expiry Day

For Option Buyers: Consider exiting or rolling positions before the final hours of expiry day, since time decay accelerates sharply and out-of-the-money options can lose most remaining value quickly.

For Option Sellers: Hedging strategies help manage the gamma risk that builds as expiry approaches, since price swings in the underlying can move option payoffs disproportionately in the final session.

For Futures Traders: Watching open interest and rollover percentages ahead of expiry gives a read on whether the broader market is extending its current trend into the next contract cycle or unwinding it.

Common Expiry Day Strategies

Straddle and Strangle: Buying both a call and a put around the same strike (straddle) or nearby strikes (strangle) can work when a large price move is expected but the direction is uncertain, common heading into a volatile expiry session.

Iron Condor: A range-bound strategy that profits when the underlying stays within a defined band, generally better suited to lower-volatility expiry sessions.

Rollover Tracking: Monitoring how much open interest shifts from the expiring contract to the next cycle offers a signal on whether the prevailing trend is likely to continue.

Intraday and Scalping Approaches: Some traders focus purely on the sharp, short-term price swings common on expiry day, though this approach requires strict stop-loss discipline given the volatility involved.

Assessing Risk Before Trading Expiry Days

Expiry-day trading isn't suited to every risk profile.

Higher risk tolerance: May be comfortable with short-term, high-volatility strategies like intraday scalping around expiry sessions.

Moderate risk tolerance: Often better suited to hedged options strategies that cap downside while still participating in expiry-day movement.

Lower risk tolerance: Generally better served avoiding expiry-day trading altogether and focusing on longer-term positions unaffected by single-session volatility. Checking India VIX ahead of expiry gives a quick read on how much volatility the broader market is pricing in that week.

Understanding a stock's underlying fundamentals through tools like the Dhanarthi financial analysis platform can help separate genuine expiry-driven opportunities from short-term noise that isn't backed by real business developments. Current index and stock data can also be checked directly on Dhanarthi before entering an expiry-week position.

Conclusion

Expiry days remain a consequential recurring event in India's derivatives market, and the schedule itself changed meaningfully in September 2025. Nifty 50 now expires every Tuesday on NSE, Sensex expires every Thursday on BSE, and Bank Nifty, FinNifty, and Nifty Midcap Select trade monthly only. Keeping this current schedule in view, rather than relying on the pre-2025 Thursday-centric calendar many traders still remember, matters for anything from simple position planning to full expiry-day strategies.

Checking current index and stock data directly on Dhanarthi alongside this expiry calendar can help confirm whether a position makes sense heading into a volatile settlement session, and the Dhanarthi Screener is useful for tracking how expiry-week volatility affects specific stocks in a watchlist.

Disclaimer: This article is for educational purposes only and does not constitute investment advice. Dhanarthi is not a SEBI-registered investment advisor or research analyst. F&O trading carries substantial risk, including the potential for rapid and significant losses. Expiry schedules are based on official NSE, BSE, and SEBI circulars as of July 2026 and are subject to change; always verify current expiry dates on the official exchange website before trading.

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