Six stocks, including Punjab National Bank, Delta Corp, L&T Finance Holdings, Bharat Heavy Electricals, Hindustan Copper and Hindustan Aeronautics Limited, are under the futures and options ban for trading on June 22, 2023. However, the stocks will be available for trading in the cash market. F&O contracts enter the ban period when open interest exceeds 95% of market-wide position limits and are only reversed if open interest falls below 80%. S&P BSE Sensex and Nifty50 ended positively on June 21, with Nifty expected to reach the milestone of 19,000 and beyond in near future.