BSE proposes pre-open trading session for F&O from December 8

BSE on Thursday proposed to introduce a pre-open session for index and stock futures in the equity derivatives segment from December 8. The move comes in light of market regulator Securities and Exchange Board of India's (Sebi's) twin circulars directing exchanges to enhance trading convenience and strengthen risk monitoring in equity derivatives.

The circulars were issued by Sebi on May 29 and June 4.

"Pursuant to the Sebi circular, it is proposed to introduce Pre-Open Session for index & stock futures in the Equity Derivatives Segment from Monday, December 08, 2025 onwards," a BSE release said.

"Trading members are requested to note that there shall be no new changes in the ETI API or market data broadcast streams to facilitate roll-out of the said functionality. Exchange already supports Pre-Open Session trading in the Equity Segment; now same message structures and field definitions will be applicable for Pre-Open Session trading in the Equity Derivatives Segment," the release added.

BSE said that other modalities related to the implementation of pre-Open session in equity derivatives will be published via a separate circular.

Changes related to the pre-open session in the equity derivatives segment will be made available for testing from October 6 in a test (simulation) environment.

BSE has asked members and third-party front-end trading application vendors to initiate changes in their respective applications.

The announcement was made during market hours, and shares of BSE were trading at Rs 2,198.90, down 16.70 or 0.75% on the NSE at around 2:40 pm

Also Read: SME IPO meltdown: 30 NSE listings in 2025 slump up to 58% versus 9 mainboard laggards

The deadline for BSE's expiry day shift to Thursday from the current expiry day of Tuesday will end this month. The exchange's monthly contracts will expire on the last Thursday of each month from September 1.

(Disclaimer: Recommendations, suggestions, views and opinions given by the experts are their own. These do not represent the views of Economic Times)