What are the new timings?
For eligible stocks, regular trading runs as usual until 3:15 PM. The auction then runs from 3:15 PM to 3:35 PM, and the official close is confirmed at the end. Equity derivatives (F&O) trade until 3:40 PM. Here’s how the window breaks down:
3:15 – 3:20 PM | Reference price is calculated | Not allowed | Not allowed |
3:20 – 3:25 PM | Auction order entry opens | Limit and market orders | Both allowed |
3:25 – 3:30 PM* | Entry narrows | Limit orders only | Limit: allowed · Market: not allowed |
3:30 – 3:35 PM | Orders are matched; closing price confirmed | Closed | Not allowed |
~3:35 PM | Official closing price is set | — | — |
Until 3:40 PM | F&O (derivatives) continues trading | Normal F&O rules apply | Normal F&O rules apply |
*Entry actually closes at a random time between 3:28 and 3:30 PM, decided automatically by the exchange, so the exact cut-off isn’t predictable.
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