Description
BSE has scheduled a mock trading session for the Equity segment on May 16, 2026, allowing trading members to test platforms and functionalities including call auction sessions, risk-reduction mode, and block deals.
Summary
BSE has scheduled a mock trading session for the Equity segment on Saturday, May 16, 2026. Trading members, including those using third-party trading platforms, are encouraged to use this session to test their trading applications across various functionalities such as call auction sessions, risk-reduction mode, trading halt, and block deals. There will be no new BOLT TWS Release in conjunction with this session.
Key Points
- Mock trading session for the Equity segment on May 16, 2026 (Saturday)
- Open to trading members using third-party and in-house trading platforms
- No new BOLT TWS Release associated with this session
- Covers testing of exceptional market conditions: call auctions, risk-reduction mode, trading halt, block deals
- Members are requested to submit feedback by 3:00 pm on the day of the session
Regulatory Changes
No regulatory changes. This is an operational/testing notice.
Compliance Requirements
- No mandatory compliance obligations; participation is voluntary
- Members are encouraged to participate and provide feedback to BSE by 3:00 pm on May 16, 2026
- Feedback to be submitted via contact numbers or email provided by BSE
Important Dates
- May 16, 2026 (Saturday): Mock trading session for Equity segment
- 3:00 pm, May 16, 2026: Deadline for submitting member feedback
Session Schedule
| Session | From | To |
|---|---|---|
| Log-in | 09:15 am | 09:45 am |
| Morning Block Deal Window | 09:45 am | 10:00 am |
| Pre-Open – Order Entry | 10:00 am | 10:08 am^ |
| Pre-Open – Matching | 10:08 am | 10:15 am |
| Continuous Trading T+1 | 10:15 am | 02:00 pm |
| Continuous Trading T+0 | 10:15 am | 01:30 pm |
| Special Pre-Open (IPO/Re-listed) – Order Entry | 10:00 am | 10:45 am^ |
| Special Pre-Open (IPO/Re-listed) – Matching | 10:45 am | 11:00 am |
| Continuous Trading for SPOS Scrips | 11:00 am | 02:00 pm |
| Periodic Call Auction (3 sessions of 1 hour) | 10:30 am | 01:30 pm |
| Auction for Settlement – Offer Entry & Matching | 11:00 am | 11:45 am |
| Afternoon Block Deal Window | 12:30 pm | 12:45 pm |
| Closing | 02:00 pm | 02:10 pm |
| Post-Closing | 02:10 pm | 02:20 pm |
| Trade Modification T+1 | – | 02:30 pm |
| Trade Modification T+0 | – | 01:45 pm |
^ Random stoppage of order entry in last 1 minute for Pre-Open & Periodic Call Auction; last 10 minutes for Special Pre-Open for IPO & Re-listed scrips.
Impact Assessment
This circular has minimal market impact as it pertains solely to a scheduled mock/test trading session on a Saturday. No live trades will be executed. Trading members benefit from the opportunity to validate system readiness, particularly for edge-case market conditions. Contact for queries: BSE Tech Support at 022-22728053 / bse.tech@bseindia.com; BSE Help Desk at 022-45720400/600 & 022-69158500 / bsehelp@bseindia.com.
Impact Justification
Routine mock trading session for system testing purposes only; no regulatory changes or compliance obligations imposed on market participants beyond voluntary participation.