The Put & Call Impact Chart informs traders which strikes or price ranges are significantly affected by options, and how the cumulative impact of options will change as the stock’s price moves. The Put & Call Impact chart is designed for more in-depth analysis showing how options impact each strike. The Synthetic OI Model’s Put & Call Impact chart offers three lenses you can select from using the settings icon at the top of the chart: (A) gamma, (B) delta, and (C) open interest.

The Total Open Interest Model pulls in total OI, includes some SpotGamma adjustments, and predominantly assumes that options are sold by market makers. This model has good validity and years of data to support its impact. The Total OI model shows key support and resistance levels using all open interest. The data used for the Total OI Model updates each night before the market open.