Description

BSE announces a mock trading session for the Equity segment on Saturday, November 08, 2025, to test trading platforms and functionalities including call auctions, risk-reduction mode, and block deals.

Summary

BSE has scheduled a mock trading session for the Equity segment on Saturday, November 08, 2025. This session is designed to allow trading members, including those using third-party trading platforms, to test their trading applications and various market functionalities. The mock session will simulate exceptional market conditions including call auction sessions, risk-reduction mode, trading halts, and block deals. There will be no new BOLT TWS Release.

Key Points

  • Mock trading session scheduled for Saturday, November 08, 2025
  • Available for all trading members including third-party platform users
  • Covers testing of various functionalities: call auctions, risk-reduction mode, trading halt, block deals
  • No new BOLT TWS Release will be implemented
  • Feedback must be submitted by 5:00 PM on the same day
  • Session covers both T+1 and T+0 trading segments

Trading Session Schedule

Login: 11:15 AM - 11:45 AM

Morning Block Deal Window: 11:45 AM - 12:00 PM

Pre-Open Session:

  • Order Entry: 12:00 PM - 12:08 PM (random stoppage in last 1 minute)
  • Matching: 12:08 PM - 12:15 PM

Continuous Trading T+1: 12:15 PM - 4:00 PM

Continuous Trading T+0: 12:15 PM - 2:30 PM

Special Pre-Open for IPO & Re-listed Scrips:

  • Order Entry: 12:00 PM - 12:45 PM (random stoppage in last 10 minutes)
  • Matching: 12:45 PM - 1:00 PM

Continuous Trading for SPOS Scrips: 1:00 PM - 4:00 PM

Periodic Call Auction: 12:30 PM - 3:30 PM (3 sessions of 1 hour each)

Auction for Settlement Details:

  • Offer Entry and Matching: 1:00 PM - 1:45 PM

Afternoon Block Deal Window: 1:50 PM - 2:05 PM

Closing: 4:00 PM - 4:10 PM

Post-Closing: 4:10 PM - 4:20 PM

Trade Modification:

  • T+1: Until 4:20 PM
  • T+0: Until 2:45 PM

Regulatory Changes

No regulatory changes. This is a routine mock trading session for testing purposes.

Compliance Requirements

  • Trading members are encouraged to participate in the mock session
  • Members using third-party platforms should coordinate testing with their vendors
  • Feedback must be submitted by 5:00 PM on November 08, 2025
  • Members should contact their Relationship Manager or BSE support teams for queries

Important Dates

  • November 08, 2025: Mock trading session
  • 5:00 PM, November 08, 2025: Deadline for feedback submission

Contact Information

For TWS users (third-party vendors & in-house developers):

Help Desk:

Impact Assessment

This is a mock trading session with no impact on actual market operations or live trading. The session provides an opportunity for trading members to test their systems and ensure readiness for various market scenarios. Participation is voluntary and designed to enhance system robustness and efficiency. There is no financial or operational impact on investors or market participants.

Impact Justification

Routine mock trading session for testing purposes with no impact on actual trading or market operations. Voluntary participation for trading members to test their systems.