Closing Auction Session Timings in Equity Derivatives Segment
BSE notice 20260801-2 · 01 Aug 2026
Official title
Closing Auction Session (CAS) Timings in Equity Derivatives Segment
Official record
Open source pageSummary
Check the official recordWhat changed
BSE has announced revised trading session timings for the Equity Derivatives segment, effective August 3, 2026. This update modifies the previous notice dated April 30, 2026, to incorporate the introduction of the Closing Auction Session. The schedule specifies distinct periods for pre-open order entry (09:00 am to 09:08 am), order matching and buffer (09:08 am to 09:15 am), and continuous trading (09:15 am to 03:40 pm). Additionally, the update sets the timing for the update of stock future price bands at 03:15 pm and trading modification at 04:15 pm. Trading members are required to align their operations with these updated session timings.
What you must do
- Trading members must adhere to the revised trading session timings for the Equity Derivatives segment.
Key dates
- Effective from
- 03 Aug 2026
Document text
NOTICE
| Notice No. | 20260801-2 |
|---|---|
| Notice Date | 01 Aug 2026 |
| Category | Trading |
| Segment | Derivatives |
| Department | Trading Operations |
| Subject | Closing Auction Session (CAS) Timings in Equity Derivatives Segment |
| Attachments | No Attachment |
In partial modification of Exchange Notice No. 20260430-19 dated April 30, 2026, in respect of trading hours , Trading Members are hereby informed that, pursuant to the introduction of the Closing Auction Session w.e.f August 3, 2026, the timing for the same as below:
| TRADING SESSIONS | FROM | TO |
|---|---|---|
| Pre-Open | ||
| Order Entry period | 09:00 am | 09:08 am^ |
| Order Matching & Buffer period | 09:08 am | 09:15 am |
| Continuous Trading | 09:15 am | 03:40 pm |
| Update of Stock future price bands for alignment with CAS in Equity Segment | 03:15 pm* | |
| Trading Modification | 04:15 pm |
^Random stoppage in last 1 minute of order entry session
- Revised price band shall be applied to the contracts sequentially starting from 03:15 pm
For and on behalf of BSE Ltd.,
Ketan Jantre Head - Trading Operations
Kaushal Mehta VP – Trading Operations
Source details
- Source
- BSE Ltd (Bombay Stock Exchange)
- Type
- notice
- Published by source
- 01 Aug 2026
- Document number
- 20260801-2
- Issuing division
- Trading Operations
- Effective date
- 03 Aug 2026
- Coverage area
- securities