Nine stocks including Indiabulls Housing Finance, IEX, and BHEL are under the F&O ban for trade on Friday, with Tata Chemicals and L&TFH being the latest to enter the list. The ban on these stocks is due to their open interest crossing the market-wide positions limit. They can still be traded in the cash market. The Sensex and Nifty50 both closed with declines on Thursday, ending a three-session gaining streak. Analysts say the bullish sentiments could be dampened if there is any further sell-off.