BSE Ltd shares declined more than 3% on Tuesday, December 9, slipping to Rs 2,708, as traders remained cautious after renewed discussions around the exchange’s proposed changes to the futures and options (F&O) segment.

The stock dropped nearly 90 points intraday, extending weakness seen over the past few sessions amid concerns linked to a consultation paper and operational changes scheduled for rollout in the derivatives market.

Earlier, on August 28, BSE had announced a major structural update that would allow pre-open trading in index and stock futures starting December 8, 2025. The exchange stated that the new mechanism would align derivatives with the equity segment, where pre-open trading already exists.

In its statement, BSE said:

  • The Pre-Open Session for the Equity Derivatives Segment will begin from December 08, 2025.

  • No new changes will be made to ETI API or market data streams for this rollout.

  • Testing for the changes will be available from October 6, 2025, in a simulation environment.

  • Trading members and front-end vendors must update and test their systems to ensure a smooth implementation.

Market participants believe that such structural announcements, including the ongoing discussions around a consultation paper on the F&O framework, have created short-term uncertainty, prompting investors to book profits in BSE shares.

The stock had closed at Rs 2,798.80 in the previous session and fell sharply in early trade today.

BSE shares, which have been among the top-performing exchange stocks this year, continue to see volatility as regulatory and operational updates emerge ahead of the planned 2025 rollout.