NSE and BSE set closing prices by auction for F&O stocks, with a random close between 3:28pm and 3:30pm IST
India's cash market now sets the closing price of stocks with listed derivatives in a 20-minute call auction instead of a last-half-hour VWAP. Under SEBI's framework, the morning pre-open auction in the cash and derivatives segments follows the same template from 7 September.