Description

BSE has scheduled a mock trading session for the Equity segment on October 25, 2025, allowing trading members and third-party platform users to test various trading functionalities and exceptional market conditions.

Summary

BSE has scheduled a mock trading session for the Equity segment on Saturday, October 25, 2025. This session is designed for trading members using BOLT TWS and third-party trading platforms to test their trading applications and various market functionalities including call auction sessions, risk-reduction mode, trading halts, and block deals. No new BOLT TWS release is scheduled. Members are requested to provide feedback by 6:00 PM on the same day.

Key Points

  • Mock trading session scheduled for Saturday, October 25, 2025
  • Available for both BOLT TWS users and third-party trading platform users
  • Testing opportunity for various functionalities including exceptional market conditions
  • No new BOLT TWS software release associated with this session
  • Comprehensive schedule covering all trading windows from 1:15 PM to 5:30 PM
  • Includes testing for T+1 and T+0 settlement cycles, IPO/re-listed scrips, periodic call auctions, and block deals
  • Feedback required from all members by 6:00 PM

Regulatory Changes

No regulatory changes. This is a routine operational testing session.

Compliance Requirements

  • Trading members are encouraged to participate in the mock trading session
  • Members must submit feedback by 6:00 PM on October 25, 2025
  • Contact BSE Helpdesk (022-45720400/600 & 022-69158500; bsehelp@bseindia.com) or BSE Tech Support (022-22728053; bse.tech@bseindia.com) for queries

Important Dates

  • October 25, 2025: Mock trading session
    • Login: 1:15 PM - 1:45 PM
    • Morning Block Deal Window: 1:45 PM - 2:00 PM
    • Pre-Open Order Entry: 2:00 PM - 2:08 PM
    • Pre-Open Matching: 2:08 PM - 2:15 PM
    • Continuous Trading T+1: 2:15 PM - 5:00 PM
    • Continuous Trading T+0: 2:15 PM - 4:30 PM
    • Special Pre-Open for IPO & Re-listed Scrips Order Entry: 2:00 PM - 2:30 PM
    • Special Pre-Open Matching: 2:30 PM - 2:45 PM
    • Continuous Trading for SPOS Scrips: 2:45 PM - 5:00 PM
    • Periodic Call Auction (2 sessions): 2:30 PM - 4:30 PM
    • Auction for Settlement Details: 3:00 PM - 3:45 PM
    • Afternoon Block Deal Window: 4:00 PM - 4:15 PM
    • Closing: 5:00 PM - 5:10 PM
    • Post-closing: 5:10 PM - 5:20 PM
    • Trade Modification T+0: 4:45 PM
    • Trade Modification T+1: 5:30 PM
  • Feedback deadline: 6:00 PM on October 25, 2025

Impact Assessment

Market Impact: None. This is a mock trading session with no impact on actual market operations or live trading.

Operational Impact: Low. Provides trading members an opportunity to test their systems, identify potential issues, and ensure readiness for various market conditions. Particularly beneficial for third-party platform vendors and in-house system developers to validate their trading applications.

Member Benefits: Testing environment for call auction sessions, risk-reduction mode, trading halts, block deals, and other exceptional market conditions without risk to live trading operations.

Impact Justification

Routine mock trading session for system testing with no impact on actual trading or market operations