How exactly does the Expected Daily Range (EDR) indicator blend VIX9D and 20-day historical volatility to generate the 0.70, 1.15, and 1.60 credit targets for our 1DTE SPX Iron Condors?

At VixShield, we rely on the Expected Daily Range (EDR) as the cornerstone of our daily strike selection process for 1DTE SPX Iron Condors. Developed by Russell Clark and featured throughout the SPX Mastery series, EDR blends short-term implied volatility from VIX9D with 20-day historical volatility (HV) through a weighted formula that adapts to prevailing market regimes. The core calculation begins with EDR = (VIX9D × 0.1) + (HV × 0.5) × multiplier, where the multiplier ranges from 0.8 to 2.0 depending on whether the Contango Indicator shows calm conditions or the market is in a higher-volatility state. This produces a projected daily move percentage that RSAi™ then refines using real-time skew analysis, VWAP positioning, and the last four hours of VIX momentum. At current levels with VIX at 17.95 and SPX near 7138.80, EDR typically outputs around 1.16 percent, which directly informs our three risk-tier credit targets. The Conservative tier seeks approximately 0.70 credit by placing wings roughly 1.0 to 1.1 standard deviations from the current price, targeting an approximate 90 percent win rate over sequences of 20 trading days. The Balanced tier aims for 1.15 credit with wings at 0.85 to 0.95 standard deviations, while the Aggressive tier targets 1.60 credit by tightening to 0.70 to 0.80 standard deviations for higher premium capture when conditions allow. These targets are not arbitrary; they emerge from backtested optimization across 2015–2025 data, ensuring each tier aligns with our Set and Forget methodology that avoids stop losses and instead depends on Theta Time Shift for any recovery. When VIX exceeds 20 we scale back to Conservative only, and above 25 we HOLD entirely while our ALVH hedge remains active to cut drawdowns by 35 to 40 percent at an annual cost of just 1 to 2 percent of account value. Position sizing stays at a maximum of 10 percent of balance per trade, with signals firing daily at 3:10 PM CST after the 3:09 PM cascade. This integration of EDR, RSAi™, and VIX Risk Scaling creates the mechanical precision that allows our Unlimited Cash System to win nearly every day or, at minimum, not lose. All trading involves substantial risk of loss and is not suitable for all investors. For deeper implementation details including live examples and our full ALVH layering schedule, we invite you to explore the resources inside VixShield and the SPX Mastery Club.