Under the futures and options (F&O) segment, one stock was banned from trade on Friday, 26 April by the National Stock Exchange (NSE). The securities banned for the F&O trade is Vodafone Idea. 

Derivative contracts of these stocks were banned as the open market interest for these securities has crossed 95% of the market-wide position limit (MWPL) set by the exchanges. The MWPL is the maximum number of contracts that can be opened at any particular time. 

Vodafone Idea was added to the list on Friday as the open interest of their F&O contracts reached 110.4%.

The ban will be lifted once the position falls below 80%. Traders will get penalised for buying or selling these securities. They will be available for trading in the cash market. 

The open interest for F&O contracts of Hindustan Copper, Aditya Birla Fashion, and Steel Authority of India declined below the 80% limit to 36.7%, 63.5%, and 72.8%, respectively. Hence, it was exited from the list on Friday.

The National Stock Exchange updates the list of securities on the F&O ban list daily. This list serves as a guide for traders and investors in the market. Traders who trade in indices do not encounter a situation of security ban.