Sir, watched this video, my understanding is 1st we have to calculate the ROC for Future Net OI for FII,let’s consider 14 days data. ROC will be today’s Future OI divided by 14 days before Future OI minus 1, then I will correlate this nos with Nifty

Or calculate ROC for daily change in Future OI and correlate with NIFTY for 14 days data

Pl correct, where I am making mistake or which logic is correct,
Thanks for your guidance