The prices at which the Nifty options were sold were a fraction of the ruling market price at that time.
A report on Friday said that Vardhaman Global Sharecom, the broker that had put in the erroneous trade, had written to markets regulator Sebi to look into this mistake. “Trades arising from such orders placed at unrealistic prices lead to aberrations in the normal price-discovery process,” the NSE circular said.
The bourse warned brokers to desist from putting in such trades. It also advised them “to put in place appropriate internal systems and procedures at their end to ensure that such orders / transactions are not placed on the trading system of the exchange”.