NSE revises closing auction and F&O expiry trading rules
In short
The NSE will change its Closing Auction Session from December 7. The session will be cut to 10 minutes, and the way the closing price is discovered will be revised.
What the reporting says
The changes also cover trading hours for F&O expiry. The move is aimed at changing how the market determines the close and handles expiry-day trading.
Why it matters
The National Stock Exchange of India will change its Closing Auction Session from December 7, shortening it to 10 minutes and revising closing-price discovery, with F&O expiry trading hours also updated. The rule changes affect market participants who trade around the close and on expiry days, where execution and price discovery can be important. The announcement is relevant for derivatives traders and broader Indian equity market activity.