Modifications in Pre-open Call Auction Session in the Equity Derivatives Segment
BSE notice 20260825-28 · 25 Aug 2026
Official title
Modifications in Pre-open Call Auction Session in the Equity derivatives Segment - Update
Official record
Open source pageSummary
Check the official recordWhat changed
BSE updates the Pre-open Call Auction Session for the Equity Derivatives segment. Trading members must review the updated FAQ document provided in the annexure. Members must ensure that all Pre-open Session information appears correctly in their client-facing applications. These changes apply to live trading starting September 07, 2026. The exchange publishes the FAQ document on its website on August 26, 2026.
What you must do
- Review the updated FAQ document.
- Display Pre-open Session information in client-facing applications.
Key dates
- Availability of FAQ document on Exchange website
- 26 Aug 2026
Document text
NOTICE
| Notice No. | 20260825-28 |
|---|---|
| Notice Date | 25 Aug 2026 |
| Category | Trading |
| Segment | Derivatives |
| Department | Trading Development |
| Subject | Modifications in Pre-open Call Auction Session in the Equity derivatives Segment - Update |
| Attachments | Annexure |
This is with reference to SEBI circular No. SEBI/HO/47/11/11(3)2025-MRD-POD2/I/2765/2026 dated January 16, 2026, Modifications in Pre-open Call Auction Session in the Equity Derivatives Segment – circular no. 20260803-36, dated August 03, 2026.
All Trading Members are requested to take note of the updated FAQ document enclosed herewith as Annexure. The FAQ document will also be made available on the Exchange website with effect from August 26, 2026, under Markets → Derivatives → Market Information → Pre-open Session.
Members are further advised to ensure that all fields and information related to the Pre-open Session are appropriately displayed in their client-facing applications.
Members are requested to note that the above changes in pre-open session shall be effective for live trading from Monday, September 07, 2026.
For any queries or clarifications, members may kindly get in touch as per the following contact details –
| Queries | Email ID | Telephone No. |
|---|---|---|
| Technical queries | bse.tech@bseindia.com |
bsehelp@bseindia.com | 022-2272 8053 022-45720400/600 and 022-69158500 | | Functional queries | iml.info@bseindia.com | 022-22728705/8885 |
For & On Behalf of BSE Ltd,
| Tejash Somaiya | Amith Iyer |
|---|---|
| Vice President | Dy. Vice President |
| Trading Development | Trading Development |
August 25, 2026
Source details
- Source
- BSE Ltd (Bombay Stock Exchange)
- Type
- notice
- Published by source
- 25 Aug 2026
- Document number
- 20260825-28
- Issuing division
- Trading Development
- Effective date
- 07 Sept 2026
- Coverage area
- securities