New NSE Market Timings Live From Today: CAS Begins, F&O Now Closes at 3:40 PM
NSE's new session structure is live from today. F&O stocks stop continuous trading at 3:15 pm, then enter the Closing Auction Session till 3:35 pm. Non-F&O stocks trade till 3:30 pm. The F&O segment now closes at 3:40 pm. Brokers have moved intraday square-off to 3:10 pm equity, 3:25 pm F&O.
Nictick — educational context
The Closing Auction Session (CAS) applies to eligible securities in the equity cash segment from August 3, 2026, and it changes how the closing price of F&O stocks is discovered. Instead of trading continuously till 3:30 pm, these stocks stop at 3:15 pm and orders are collected in a common order book, with the closing price set through an auction rather than a VWAP average. The derivatives segment gets 10 extra minutes because F&O contracts derive value from the cash market, and the VWAP window