BSE and NSE Revise Index Contract Expiry Dates Starting Jan 2025

On November 28, 2024, the Bombay Stock Exchange (BSE) announced changes to the expiry dates for its Sensex, Bankex, and Sensex 50 contracts, which will take effect starting January 1, 2025. According to a circular issued by the exchange, the expiry of weekly Sensex contracts will be moved from Fridays to Tuesdays.

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In addition to this, the expiry for monthly contracts of Sensex, Bankex, and Sensex 50 will now fall on the last Tuesday of each month. Previously, the Sensex monthly expiry was on the last Friday of the month, while the Bankex and Sensex 50 monthly expiries occurred on the last Monday and Thursday, respectively.

The adjustment will also impact quarterly and semi-annual Sensex contracts, which will now expire on the last Tuesday of the expiry month, replacing the previous Friday expiry.

In response to changes made by the National Stock Exchange (NSE), which has already discontinued weekly contracts for Nifty Bank, FinNifty, Nifty Midcap Select, and Nifty Next50, the NSE will now revise the expiry date for these four contracts to Thursday, starting January 1, 2025.

At present, the Nifty Bank monthly and quarterly contracts expire on the last Wednesday of the month, FinNifty's expiry occurs on Tuesday, Nifty Midcap Select contracts expire on Mondays, and Nifty Next50 contracts end on Fridays.

The NSE clarified that there will be no changes to the expiry days for Nifty's monthly, weekly, quarterly, and half-yearly contracts. This update will take effect at the end of January 1, 2025, meaning all contracts will adhere to the new expiry day from the following trading day, January 2, 2025.

Earlier this week, BSE had already confirmed that the monthly expiry for Sensex, Bankex, and Sensex 50 contracts will be shifted to the last Tuesday of every month starting January 2025, while weekly Sensex contracts will also expire on Tuesdays.

In an effort to curb excessive trading activity on expiry days, the Securities and Exchange Board of India (SEBI) recently instructed exchanges to restrict weekly options to a single index derivative product. As a result, both BSE and NSE have phased out weekly contracts for all index derivatives except Sensex and Nifty, effective November 20, 2024.