New Delhi, March 5 -- Shares of BSE Ltd tumbled over 9 percent in early trade on Wednesday, March 5 on the NSE following the National Stock Exchange (NSE)'s decision to change the expiry day for all Nifty index weekly futures and options (F&O) contracts from the last Thursday of the month to the last Monday of the expiry month, effective April 4, 2025.

"The circular shall come into effect from April 04, 2025 i.e. Expiry day for all existing contracts will be revised to "New Expiry Day" on April 03, 2025 (EOD)," said NSE.

In a circular issued on March 5, NSE confirmed that all existing contracts would be revised to the new expiry day on April 3, 2025 (EOD). The adjustment will impact key indices, including Nifty 50, Bank Nifty, FinNifty,...