Description

BSE announces mock trading session for equity segment on Saturday, September 6, 2025, with detailed trading timelines and new BOLT Pro TWS version 12.03 release.

Summary

BSE has scheduled a mock trading session for the Equity segment on Saturday, September 6, 2025. The session will feature the release of new BOLT Pro TWS version 12.03 and provide an opportunity for trading members to test their systems and third-party trading platforms across various market conditions and functionalities.

Key Points

  • Mock trading session scheduled for Saturday, September 6, 2025
  • New BOLT Pro TWS version 12.03 will be released during the session
  • Members can choose between Mock Trading Session or UAT environment for regulatory compliance
  • Third-party trading platform users can test various functionalities including call auctions, risk-reduction mode, trading halt, and block deals
  • Comprehensive trading schedule from 10:15 AM to 4:00 PM with multiple session types
  • Feedback required from all participants by 4:30 PM on the same day

Regulatory Changes

No regulatory changes announced. The mock session aligns with existing SEBI circular SEBI/HO/MRD1/DSAP/CIR/P/2020/234 dated November 24, 2020, regarding testing requirements for trading and risk management software.

Compliance Requirements

  • Trading members must participate in either Mock Trading Session or UAT environment to fulfill regulatory requirements
  • Members using third-party trading platforms should utilize this opportunity for comprehensive system testing
  • All members must provide feedback by 4:30 PM on September 6, 2025
  • Members should refer to Exchange Notice No 20201201-22 dated December 1, 2020, regarding software testing protocols

Important Dates

  • September 6, 2025: Mock trading session day
  • 10:15 AM - 4:00 PM: Complete trading session timeline
  • 4:30 PM: Deadline for member feedback submission
  • Separate circular: Details for BOLT Pro TWS version 12.03 release

Impact Assessment

Market Impact: Minimal direct market impact as this is a mock session on a non-trading day (Saturday). However, successful testing ensures system reliability for regular trading days.

Operational Impact: Medium impact on trading members who need to allocate resources for testing and validation. Critical for members using third-party platforms to ensure system compatibility and functionality under various market conditions including exceptional scenarios like trading halts and risk-reduction modes.

Impact Justification

Scheduled mock trading session for system testing and platform upgrade affects all trading members but is routine maintenance activity