Description

BSE has scheduled a mock trading session for the Equity segment on November 29th, 2025 to enable trading members and third-party platform providers to test their systems and various market functionalities.

Summary

BSE has scheduled a mock trading session for the Equity segment on Saturday, November 29th, 2025. This session provides trading members using third-party platforms or proprietary systems an opportunity to test their trading applications under various market scenarios including exceptional conditions like call auction sessions, risk-reduction mode, trading halts, and block deals. There will be no new BOLT TWS release associated with this mock session.

Key Points

  • Mock trading session scheduled for November 29th, 2025 (Saturday)
  • Available for all trading members including those using third-party platforms
  • Testing covers various functionalities: call auctions, risk-reduction mode, trading halts, block deals
  • No new BOLT TWS release planned
  • Feedback requested from all members by 3:00 PM on the session day

Trading Session Schedule

Login: 09:15 AM - 09:45 AM

Morning Block Deal Window: 09:45 AM - 10:00 AM

Pre-Open Session:

  • Order Entry: 10:00 AM - 10:08 AM (random stoppage in last 1 minute)
  • Matching Period: 10:08 AM - 10:15 AM

Continuous Trading:

  • T+1 Settlement: 10:15 AM - 01:00 PM
  • T+0 Settlement: 10:15 AM - 12:30 PM

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

  • Order Entry: 10:00 AM - 10:45 AM (random stoppage in last 10 minutes)
  • Matching Period: 10:45 AM - 11:00 AM

Continuous Trading for SPOS Scrips: 11:00 AM - 01:00 PM

Periodic Call Auction: 10:30 AM - 12:30 PM (2 sessions of 1 hour each)

Auction for Settlement Details:

  • Offer Entry and Matching: 11:00 AM - 11:45 AM

Afternoon Block Deal Window: 12:30 PM - 12:45 PM

Closing Session: 01:00 PM - 01:10 PM

Post-Closing: 01:10 PM - 01:20 PM

Trade Modification:

  • T+1: Until 01:30 PM
  • T+0: 12:45 PM onwards

Compliance Requirements

  • Trading members are encouraged to participate in the mock session to test their systems
  • Members must provide feedback by 3:00 PM on the mock trading day
  • Third-party trading platform vendors and in-house system developers should utilize this opportunity for comprehensive testing

Important Dates

  • Mock Trading Session: November 29th, 2025 (Saturday)
  • Feedback Deadline: 3:00 PM on November 29th, 2025

Contact Information

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

For General Queries:

Impact Assessment

This is a routine mock trading session with no impact on live market operations or actual trading. The session enables system testing and quality assurance for trading infrastructure, helping ensure robust and efficient operations during actual trading days. Members can test exceptional market scenarios in a controlled environment without financial risk.

Impact Justification

Routine mock trading session for system testing with no impact on live trading or investor holdings