SEBI revises auction timings and derivatives pricing rules
In short
SEBI changed the closing auction and derivatives pricing rules. The summaries say the cash market auction will run from 3:30 p.m. to 3:40 p.m. starting in December 2026, and some unexecuted-order changes will begin in February 2027.
This matters for investors and traders because it changes how closing prices are set. The reporting does not fully spell out every rule change.
What the reporting says
SEBI revised the closing auction session framework and updated derivatives settlement pricing rules, with changes said to start in December 2026 and unexecuted-order changes in February 2027. The publisher-supplied summaries say the cash-market session will run from 3:30 p.m. to 3:40 p.m., with phases for order entry and revised handling of unexecuted orders. The reporting does not provide the final official notification text or explain every rule difference.
Why it matters
The reported changes affect both the equity cash market and derivatives settlement in India, with a phased rollout starting in December 2026 and some unexecuted-order rules taking effect in February 2027. The auction timing shift to 3:30 p.m. to 3:40 p.m. and the updated settlement methodology could affect traders, brokers and exchanges. The reporting does not state the formal circular number or full implementation details.