NSE to launch 15-minute pre-open F&O session Dec. 8, allowing limit/market orders for current-month futures.

The National Stock Exchange (NSE) will launch a pre-open session for equity derivatives (F&O) on December 8, 2025, from 9:00 AM to 9:15 AM daily using a 15-minute call auction. It will apply to current-month stock and index futures, with next-month contracts added in the final five trading days before expiry. The session includes order entry (9:00–9:08 AM), price determination (9:08–9:12 AM), and a buffer period (9:12–9:15 AM). Only limit and market orders are allowed; special orders are excluded. Real-time data on prices and demand-supply will be shared. The feature will not cover options, spreads, far-month contracts, or futures on ex-dates. Market parameters remain unchanged.