Description
BSE has scheduled a mock trading session for Equity Derivatives segment on December 06, 2025, with new BOLT Pro TWS version 12.40 release and testing of Pre-Open Session features.
Summary
BSE has scheduled a mock trading session for the Equity Derivatives segment on Saturday, December 06, 2025. This session will allow members to test the new BOLT Pro TWS version 12.40 and practice with the newly introduced Pre-Open Session features and Reserved contracts (strikes) that will go live on December 08, 2025. Members can participate either in the Mock Trading Session or UAT environment to fulfill regulatory requirements under SEBI circular SEBI/HO/MRD1/DSAP/CIR/P/2020/234 dated November 24, 2020.
Key Points
- Mock trading session scheduled for Saturday, December 06, 2025
- New BOLT Pro TWS version 12.40 will be released (details in separate circular)
- Members can test Pre-Open Session functionality before December 08, 2025 go-live
- Reserved contracts (strikes) in Equity Derivatives will be available for testing
- Trading members using third-party platforms or in-house systems via IML/ETI APIs can test various functionalities
- Testing includes exceptional market conditions like risk-reduction mode and trading halt scenarios
- Feedback required by 4:30 PM on December 06, 2025
Regulatory Changes
No new regulatory changes introduced. This mock session supports upcoming implementation of:
- Pre-Open Session in Equity Derivatives Segment (circular 20251110-40 dated November 10, 2025)
- Reserved contracts (strikes) in Equity Derivatives (circular 20251028-51 dated October 28, 2025)
- Both features scheduled to go live from Monday, December 08, 2025
Compliance Requirements
- Participation is voluntary but recommended for members to fulfill regulatory requirements per SEBI circular SEBI/HO/MRD1/DSAP/CIR/P/2020/234 dated November 24, 2020
- Members should test their trading and risk management software as per Exchange Notice No 20201201-22 dated December 01, 2020
- Members must provide feedback by 4:30 PM on December 06, 2025
- Choice between Mock Trading Session or UAT environment for regulatory compliance
Important Dates
- December 06, 2025 (Saturday): Mock trading session
- Login: 08:15 AM - 09:00 AM
- Pre-Open Session (Order Entry): 09:00 AM - 09:07/08 AM
- Pre-Open Session (Order Matching): 09:08 AM - 09:12 AM
- Pre-Open Session (Buffer): 09:12 AM - 09:15 AM
- Continuous Trading: 09:15 AM - 09:30 AM
- Pre-Open Session (Order Entry): 10:00 AM - 11:54/55 AM
- Pre-Open Session (Order Matching): 11:56 AM - 11:58 AM
- Pre-Open Session (Buffer): 11:58 AM - 12:00 Noon
- Continuous Trading: 12:00 Noon - 03:30 PM
- Trade Modification: 03:30 PM onwards
- Feedback deadline: 4:30 PM
- December 08, 2025 (Monday): Pre-Open Session and Reserved contracts go live
Impact Assessment
Market Impact: None. This is a mock trading session with no real market transactions.
Operational Impact: Low to medium for participating members. Members need to allocate resources for testing on Saturday, December 06, 2025. This is an opportunity to:
- Test new BOLT Pro TWS version 12.40 before production use
- Familiarize trading systems with Pre-Open Session mechanics
- Validate third-party platforms and in-house systems via IML/ETI APIs
- Test risk management systems under exceptional market conditions
- Ensure readiness for December 08, 2025 go-live of new features
Member Benefits: Proactive testing reduces operational risks when new features go live on December 08, 2025. Members can identify and resolve technical issues in a controlled environment.
Contact Information:
- TWS users/vendors: BSE Tech Support at 022-22728053 or bse.tech@bseindia.com
- General queries: Help Desk at 022-45720400/600 & 022-69158500 or bsehelp@bseindia.com
- Relationship Managers also available for assistance
Impact Justification
Routine mock trading session for system testing and software upgrade. No market impact or compliance requirements beyond voluntary participation for testing purposes.