There’s been a change in how Market Wide Position Limits (MWPL) are calculated for stock derivatives. Earlier, when a stock entered the F&O ban period for breaching MWPL, it was based on notional open interest (OI). From December 6, 2025, that method has changed. Instead of just counting contracts, exchanges now measure future-equivalent (delta-based) open interest. This changes how ban periods are triggered and how F&O positions can be adjusted once a stock is in the ban. In this video,