The Bombay Stock Exchange (BSE) has announced significant changes to the expiry days for its Sensex, Bankex, and Sensex 50 index derivatives, effective January 1, 2025. This move aligns with broader market practices and aims to enhance trading efficiency.
Updates to Expiry Days for Weekly and Monthly Contracts
Weekly contracts for the Sensex, previously expiring on Fridays, will now expire on Tuesdays. For monthly contracts, including Sensex, Bankex, and Sensex 50, the expiry shifts to the last Tuesday of each month. This change replaces the previous schedule where monthly expiries occurred on different weekdays for each index.
Quarterly and Semi-Annual Contract Adjustments
The quarterly and semi-annual Sensex contracts will also see a shift in their expiry schedules, moving from the last Friday to Tuesdays of the respective expiry months. All contracts expiring beyond January 3, 2025, will uniformly adopt the Tuesday expiry schedule.
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Transition Plan for Existing Contracts
Existing index futures and options contracts will transition to the new expiry schedule after the trading session on December 31, 2024. The weekly Sensex derivatives contract expiring on January 3, 2025, will maintain its original Friday expiry as an exception. All new contracts introduced post-January 1, 2025, will adhere to the revised Tuesday expiry.
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Contract Specifications Remain Unchanged
While the expiry days are being revised, BSE has clarified that no other contract specifications will be affected. The updated details for the derivatives contracts will be available in the contract master file by the end of December 31, 2024.
This revision underscores BSE’s commitment to aligning with global market practices and streamlining trading operations for its participants.
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