Description

BSE has scheduled a mock trading session for the Equity segment on Saturday, January 03, 2026 to enable members to test their trading systems and fulfill regulatory requirements.

Summary

BSE has scheduled a mock trading session for the Equity segment on Saturday, January 03, 2026. Members can participate in either 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. This session allows trading members and third-party platform users to test various trading functionalities including exceptional market conditions, call auction sessions, risk-reduction mode, trading halts, and block deals. There will be no new BOLT TWS release for this session.

Key Points

  • Mock trading session scheduled for Saturday, January 03, 2026 for Equity segment
  • Members can choose between mock trading session or UAT environment for regulatory compliance
  • Third-party trading platform users can test their applications during the session
  • Various functionalities available for testing: call auctions, risk-reduction mode, trading halts, block deals
  • No new BOLT TWS release planned
  • Feedback solicited from all members by 4:30 pm on session day
  • Members should refer to Exchange Notice No 20201201-22 dated December 1, 2020 regarding testing requirements

Regulatory Changes

No regulatory changes introduced. This mock session enables compliance with existing SEBI circular no. SEBI/HO/MRD1/DSAP/CIR/P/2020/234 dated November 24, 2020 regarding testing of software used in or related to Trading and Risk Management.

Compliance Requirements

  • Trading members must conduct periodic testing of their trading and risk management software
  • Members can fulfill regulatory requirements by participating in either mock trading sessions or UAT environment
  • Third-party trading platform vendors should utilize this opportunity to test exceptional market conditions and various functionalities
  • Feedback must be submitted by 4:30 pm on the day of mock trading

Important Dates

  • Mock Trading Date: Saturday, January 03, 2026
  • Login: 10:15 am - 10:45 am
  • Morning Block Deal Window: 10:45 am - 11:00 am
  • Pre-Open Order Entry: 11:00 am - 11:08 am (random stoppage in last 1 minute)
  • Pre-Open Matching: 11:08 am - 11:15 am
  • Continuous Trading T+1: 11:15 am - 03:30 pm
  • Continuous Trading T+0: 11:15 am - 01:30 pm
  • Special Pre-Open for IPO & Re-listed Scrips Order Entry: 11:00 am - 11:45 am (random stoppage in last 10 minutes)
  • Special Pre-Open Matching: 11:45 am - 12:00 pm
  • Continuous Trading for SPOS Scrips: 12:00 pm - 03:30 pm
  • Periodic Call Auction (4 sessions of 1 hour): 11:30 am - 03:30 pm
  • Auction for Settlement Details: 12:00 pm - 12:45 pm
  • Afternoon Block Deal Window: 01:30 pm - 01:45 pm
  • Closing: 03:30 pm - 03:40 pm
  • Post-Closing: 03:40 pm - 03:50 pm
  • Trade Modification T+1: Until 04:00 pm
  • Trade Modification T+0: Until 01:45 pm
  • Feedback Submission Deadline: 4:30 pm on January 03, 2026

Impact Assessment

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

Operational Impact: Low - Voluntary participation for members to test and validate their trading systems, risk management software, and third-party platforms. Benefits include:

  • Opportunity to test exceptional market conditions in a controlled environment
  • Validation of trading platform functionalities including call auctions, block deals, and risk controls
  • Compliance with SEBI testing requirements
  • System readiness assessment without market risk

Member Impact: Positive - Provides testing opportunity for trading members using in-house or third-party systems to ensure operational readiness and regulatory compliance.

Contact Information:

Impact Justification

Routine mock trading session for system testing purposes with no market impact; voluntary participation for members to test trading platforms and fulfill regulatory testing requirements