Open Interest Heatmaps: Reading Volume Profiles in Nifty Options

Reading the Option Chain Volume

Open Interest (OI) buildup provides a map of where sellers are positioning themselves. Looking at PCR shifts and max pain changes helps traders identify where the major participants expect Nifty to settle on expiry day.

Using Heatmaps for Visualization

By visualizing OI changes in a structured heatmap, it is easier to spot strike-ordered support/resistance zones and trace breakout momentum before it reflects on the underlying index.