Money is made in trading options volatility in two ways: Buying implied volatility low and selling implied volatility high.
Delta hedging with the underlying asset over the life of the option captures the realized volatility. This is known as Gamma Scalping, Gamma Trading, or Gamma Capture. The difference between the rVol from hedging and iVol is the trader's P&L. Gamma Capture is the rVol level derived from a dynamic hedge of an option.
Gamma Capture utilizes a barrier crossing method to calculate intraday volatility within a 30- or 60-minute look-back window. This approach measures the degree of price variation of assets, such as the S&P 500, during a trading day. Our system calculates a stable and accurate 1-Day volatility measure, specifically designed for S&P 500 0-DTE options trading and based on options market making P&L.
Gamma Capture is essential for traders looking to assess risk, identify potential 0-DTE options trading opportunities, and establish stop-loss levels based on volatility rather than just price.