The National Stock Exchange has added two more shares to the F&P ban on September 22 after the script passed 95 percent of the market position limit throughout the market.

Ambuja cement and being able to do a house fin is the latest stock added to the list of F&P ban, however, the exchange deletes Indian cement from the list.

The share price of Ambuja Semen fell by almost 6 percent to RS 541, while the FIN house can drop more than 2 percent to RS 552.4, which has experienced a significant buildup in a short position.

Delta Corp, Escorts Kubota, PVR, and RBL Bank continue to remain in the list of F&O ban for Thursday.If the derivative contract in securities crosses 95 percent of the market position limit, they end in the list of prohibitions, NSE said.

All clients/members will trade in derivative contracts from security only to reduce their position through compensation. Every increase in open position must attract appropriate punishment and discipline, “he said.

During the prohibition, traders are not permitted to take new positions in stocks but can begin to reduce their position. F&P tire rules help reduce speculation in stock.

Market position limit throughout the market, determined by the stock exchange, is the maximum number of open positions in circulation (buying and selling) in the F&O contract security. If the interest is open to the stock crosses 95 percent of the market position limit, its F&P contract enters the prohibition period.

Normal trading in resume security only after aggregate open interest throughout the exchange fell to 80 percent or below the market position limit, NSE said.