What is the OCC Indicator? The OCC Indicator informs SpotGamma users as to which options are being bought to open or close positions. Knowing the rate of call options being bought to open will indicate a more bullish (more calls being bought to open) or bearish (more puts bought to open) market dynamic. Awareness around the dealers and market makers positioning informs SpotGamma users as to if we are in a bullish or bearish environment when executing their trades. Subscribers can access SpotGamma's OCC Indicator here. Related articles How do I use the OCC data? What are Vanna Charts? How does Next Exp Delta & Gamma effect the price going into that expiration and on Monday? How do I change the categories in the OCC? How do I install the HIRO Indicator?