Mumbai, Nov. 4 -- In a circular released today, the National Stock Exchange (NSE) said that it will introduce a pre-open session for equity futures and options (F&O) starting 08 December 2025, allowing traders to discover opening prices for index and stock futures before regular trading begins.

This move brings the derivatives market in line with the equity cash market's pre-open call auction and aims to enhance price discovery and reduce opening volatility.

The F&O pre-open session will run from 9:00 a.m. to 9:15 a.m., following a call auction mechanism. Order entry, modification, and cancellation will be permitted until a random close between 9:07-9:08 a.m., followed by price discovery and trade matching until 9:12 a.m. A three-minute...