BusinessPhoto: NDTV BusinessSEBI Revises Closing Auction Session Timings and Order Rules
The Securities and Exchange Board of India (SEBI) has updated the closing auction session (CAS) framework, setting the auction window from 3:30 p.m. to 3:40 p.m. starting December 7, 2026. The reference price will be based on the volume-weighted average price (VWAP) of the last 15 minutes of continuous trading. Order entry will close randomly between 3:38 p.m. and 3:40 p.m. Index derivatives trade until 3:45 p.m., with expiring contracts ending at 3:30 p.m. on expiry days.
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