Nifty F&O are creating excitement in my analysis I have closely analyzed nifty option contracts of current expiry series, found that open interest that is build in put options was some extraordinary behavior of traders. Most of put writing was seen in 5300 put option, which is our predicted bottom for current F&O series. Fact is most of option contracts expire worthless (about 90%), therefore option writers are sole gainers. Same situation is here now most of writing is seen in nifty put option side so majority of traders are betting on long side of nifty future. If we carefully study open interest data then we will finds there are lots of long positions being added each day. Even today about 30 lakh shares were added to open interest, most of them being long positions. An intraday trader for nifty future can take position based on intraday margin.