0DTE options are reshaping market dynamics, now accounting for over half of S&P 500 options trading. Head Quant at OptionMetrics, Garrett DeSimone, notes: “A lot of intraday moves have a relationship to the gamma profile… The focus is really on intraday.” Banks like UBS and analytics firms are leveraging intraday gamma insights to refine trading strategies, manage risk, and prepare for high-volatility scenarios. With 0DTE options’ rapid rise, the ability to track gamma flows in real time has never been more critical.

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