NSE gets SEBI approval for Tuesday's weekly expiry, BSE gets Thursday

The Bombay Stock Exchange (BSE) on June 17 confirmed that the expiry day for its equity futures and options (F&O) contracts will shift from Tuesday to Thursday, starting September 1, 2025. The change comes after the Securities and Exchange Board of India (SEBI) approved the proposal submitted by BSE.

SEBI clears BSE expiry day shift to Thursday

According to the official circular, SEBI has "agreed to the expiry day proposed by BSE" following a review of the exchange’s operational roadmap and regulatory compliance. The Thursday expiry will bring BSE's derivatives expiry schedule closer to the NSE, which recently received SEBI approval to move its F&O expiry to Tuesday from the existing Thursday format.

New expiry rule from Sept 1; no change for ongoing contracts

Starting September 1, 2025, all newly introduced BSE equity derivative contracts — including weekly and monthly options and futures — will expire on Thursdays. For monthly contracts, the expiry will occur on the last Thursday of each month, in line with long-established market practices.

Contracts already listed before September will continue to expire on Tuesdays, ensuring a smooth transition for market participants. Long-dated index options may be realigned based on prevailing exchange practices.

No new index futures weekly contracts from July 1

To facilitate the expiry transition and prevent overlap during the handover period, BSE has also announced that it will not introduce any new weekly index futures contracts starting July 1, 2025. The exchange is expected to release another detailed circular soon to clarify operational procedures for traders and brokers.

With both NSE and BSE reshaping their F&O expiry schedules, traders will have to adjust to new expiry days beginning Q3FY26. Market watchers say this development could intensify the competition between the two exchanges, especially in the equity derivatives segment. It also opens up arbitrage opportunities and hedging strategies for traders operating across platforms. Keep an eye on liquidity trends and volume shifts as both exchanges implement these changes.