The Bombay Stock Exchange (BSE) announced on Thursday, November 28 that it has changed the expiry days for Sensex, Bankex and Sensex 50. In a circular, BSE informed revised expiry days of Sensex, Bankex and Sensex 50 index derivatives contracts will come into effect starting from January 1, 2025.
According to the revised dates, Sensex's weekly contracts will expire on Tuesday of every week from Friday every week from January 1, 2025. All the monthly contracts of Sensex, Bankex, and Sensex 50 will expire on the last Tuesday from January 1, 2025. Currently, the existing expiry days for the same are the last Friday, last Monday, and Thursday, respectively.
Sensex's quarterly and semi-annual contracts will expire on Tuesday of the expiry month, a change from the current last Friday of the expiry month. The expiry date for existing index futures and options contracts will be revised as mentioned above on end of day of December 31, 2024.
The expiry day of all existing derivatives contracts on Sensex, Bankex, and Sensex 50, expiring after January 3, 2025, will be revised to Tuesday. There will be no change in the existing weekly derivatives contract of Sensex, expiring on January 03, 2025. The new index derivatives contracts generated after January 01, 2025, will have an expiry day of Tuesday.
"Trading members are requested to note that there is no change in other aspects of the contract specifications in the above-mentioned contracts except on expiry day. The details of the above-mentioned derivative contracts will be available in the derivatives contract master file generated at the end of the day on December 31, 2024," said BSE in its circular.
On Thursday, domestic equity benchmarks Sensex and Nifty 50 posted their steepest declines in nearly two months, dragged down by heavyweight IT firms and as investors adjusted positions due to the expiry of monthly derivatives contracts. The NSE Nifty 50 fell 1.49 per cent to 23,914.15, while the BSE Sensex lost 1.48 per cent to 79,043.74.
Investors' wealth fell by ₹1,50,265.63 crore to ₹4,42,98,083.42 crore. The Nifty 50 monthly derivatives series expired on Thursday, meaning investors must close or roll over their contracts. The Bank Nifty derivatives contracts expired on Wednesday. The small- and mid-caps bucked the weakness to end little changed as they have no derivatives and minimal exposure to IT stocks.
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