What is the Total OI Put & Call Impact Chart? After choosing a specific stock or index, you can choose to see both the Put and Call Impact broken out separately, showing the rate change of gamma in these curves. Essentially what this is telling you is, is how quickly gamma hedging changes based on price. The more steep or vertical this line is, the faster gamma is changing, which tells us that we should expect more volatility at these prices until the curve starts to flatten out again. Overlaid on these curves are these two sets of bar charts which show Gamma by strike for calls in orange, and Gamma by strike for puts in blue for all expirations. The smaller subset of bars inside show Gamma for the next expiration only. This can show us exactly which strikes have big expirations relative to how fast Gamma is changing. SpotGamma Pro and SpotGamma Alpha subscribers can access Equity Hub™ here. Related articles What is the Total OI Live Price & SG Levels Chart? Understanding Equity Hub™ Levels What is the Total OI Composite View chart? What is the Skew chart in Equity Hub™? What is the SpotGamma HIRO Indicator?