Sebi Revises CAS Rules and Derivatives Expiry Settlement Method
Sebi announced changes to the closing auction session (CAS) for the equity cash market starting December 2026. The session will run from 3:30 pm to 3:40 pm with defined order entry phases. Additionally, the methodology for calculating derivatives contract settlement prices has been updated. Unexecuted orders will follow new rules while preserving time priority differences.
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