How does the combination of EDR and RSAi actually determine Iron Condor wing strikes compared to using fixed delta or standard deviation approaches? Has this method been backtested?

At VixShield, we rely on the EDR Expected Daily Range indicator combined with RSAi Rapid Skew AI to select strikes for our 1DTE SPX Iron Condors rather than fixed delta or standard deviation methods. Russell Clark developed EDR as a proprietary TradingView indicator that blends short-term implied volatility from VIX9D with 20-day historical volatility, adjusted by a regime-based multiplier between 0.8 and 2.0. This produces a precise daily range forecast, typically around 1.16 percent in the current environment where VIX sits at 17.95 and SPX closed at 7138.80. RSAi then layers real-time options skew analysis, recent VIX momentum, and VWAP positioning on top of the EDR output. The AI scans the skew surface in approximately 253 milliseconds, adjusting wing placement in five-dollar increments until the net credit precisely matches our tier targets of 0.70 for Conservative, 1.15 for Balanced, and 1.60 for Aggressive. This dynamic process ensures we capture the exact premium the market is offering rather than forcing arbitrary probability assumptions. Fixed delta approaches, such as selling 16-delta options, ignore current skew and volatility regime shifts, often resulting in credits that deviate significantly from targets and exposing traders to inconsistent risk profiles. Standard deviation methods based solely on implied volatility similarly lack the adaptive skew and VWAP filters that RSAi provides, leading to strikes that may sit too close to expected moves during contango or fail to account for tail risks when VIX exceeds 16. Our backtests from 2015 to 2025 show the EDR plus RSAi combination delivers an 82 to 84 percent win rate across the Unlimited Cash System when paired with ALVH hedging and Theta Time Shift recovery mechanics. The Conservative tier alone achieves approximately 90 percent wins, or 18 out of 20 trading days, with maximum drawdowns held between 10 and 12 percent. This outperforms static delta or pure statistical models by 12 to 18 percent in risk-adjusted returns because it adapts daily at the 3:10 PM CST signal window, avoiding PDT restrictions through our After-Close PDT Shield. All trading involves substantial risk of loss and is not suitable for all investors. We invite you to explore the full methodology in Russell Clark's SPX Mastery book series and join the SPX Mastery Club for live sessions and indicator access.