BSE notice 20260521-10 · 21 May 2026
Official record
Open source pageSummary
Check the official recordBSE schedules a mock trading session for the Equity Derivatives segment on Saturday, May 23, 2026. Trading members using third-party platforms or in-house systems through ETI APIs may test their applications. The session includes testing for risk-reduction mode and trading halts. The session begins with a log-in period at 09:15 AM and ends with continuous trading until 12:00 PM. Trades from this session do not create margin obligations, pay-in obligations, or pay-out obligations. Trades do not create rights or liabilities. Members must provide feedback by 01:00 PM on the day of the session. There is no new BOLT TWS release for this session.
What you must do
Key dates
| Notice No. | 20260521-10 |
|---|---|
| Notice Date | 21 May 2026 |
| Category | Trading |
| Segment | Derivatives |
| Department | Trading Operations |
| Subject | Mock Trading on Saturday, May 23, 2026, for Equity Derivatives segment |
| Attachments | No Attachment |
The Exchange has scheduled a mock trading session for Equity Derivatives segment on Saturday, May 23rd, 2026
Trading members using third party trading platforms of empaneled vendors or in-house developed systems through ETI APIs can use this opportunity to test their respective trading application during mock trading session for various functionalities (including exceptional market conditions), viz. risk-reduction mode, trading halt, etc.
There shall be no new BOLT TWS Release.
| TRADING SESSIONS | FROM | TO |
|---|---|---|
| Log-in | 09:15 AM | 10:00 AM |
| Pre-Open Session | ||
| Order Entry period | 10:00 AM | 10:07/08 AM^ |
| Order Matching period | 10:08 AM | 10:12 AM |
| Buffer period | 10:12 AM | 10:15 AM |
| Continuous Trading | 10:15 AM | 12:00 PM |
^ - Random stoppage in last 1 minute of order entry session
Market participants are requested to note that the mock trading session is merely for the purpose of testing and familiarization and that the trades resulting from such mock trading will not attract any margin obligation or pay-in and pay-out obligation and will not create any rights and liabilities. Participants are requested to participate actively in the mock trading sessions.
Feedback of Mock Trading Session
To be able to provide our members with a robust & efficient system for trading with better features, feedback from all members is very important. We solicit your active support and participation in this endeavor. We request all members to give their feedback for the mock trading session on the contact numbers/ email id provided below by 01:00 PM
In case of any queries or clarifications, trading members may kindly get in touch with their respective Relationship Manager or contact either the BSE Helpdesk or the BSE Tech Support team teams for any clarification/ queries on this circular –
| TWS users and IML users (third party empaneled vendors & in-house system developers) | |
|---|---|
| BSE Tech Support | 022-22728053; bse.tech@bseindia.com |
| Help Desk | 022-45720400/600 & 022-69158500; bsehelp@bseindia.com |
For and on behalf of BSE Ltd.,
Ketan Jantre
Head - Trading Operations
Sandeep Pujari
DVP – Trading Operations
Who is affected
If you do not comply