Trending strikes for NIFTY and BANK NIFTY options. Best way to know the trend for the day using top OI gainer strikes for the day. Open Interest for NIFTY and BANK NIFTY changes today. Detailed insight for Open Interest change based on 15, 60, and daily intervals. NSE Futures analysis based on OI and Price changes. Futures long vs short build, short covering and long unwinding. Rich traders have spent years mastering the art of options trading , developing tricks and techniques that give them an edge.