How does the EDR indicator work for selecting strikes in SPX iron condors? Has the 90 percent win rate been backtested on the 0.70 conservative credit tier?

At VixShield, we rely on the EDR Expected Daily Range indicator developed by Russell Clark as the foundation for strike selection in our 1DTE SPX Iron Condor Command. The EDR blends short-term implied volatility from VIX9D with 20-day historical volatility using a proprietary formula that outputs three risk-tuned strike recommendations labeled High, Medium, and Low. These directly map to our credit tiers: the Conservative tier targets approximately 0.70 credit with the widest wings for an approximate 90 percent win rate, the Balanced tier aims for 1.15 credit, and the Aggressive tier seeks 1.60 credit with tighter wings. On a typical trading day with SPX at 7138.80 and current VIX at 17.95, the EDR might project a daily range of roughly 1.16 percent, prompting RSAi to dynamically adjust the put and call wings in real time by assessing skew, VWAP positioning, and recent VIX momentum to match the exact premium the market offers. This process completes in milliseconds and ensures we place our iron condors in the 15-minute post-close window after the 3:09 PM cascade, fully aligned with our After-Close PDT Shield timing. The Conservative tier's high win rate stems from placing wings outside the EDR projection, allowing the position to benefit from theta decay in most market conditions. Our backtests from 2015 through 2025 confirm the Conservative tier achieves approximately 18 winning days out of 20 trading days, supporting the 90 percent figure when strictly following the Set and Forget methodology with no stop losses. This success integrates with our ALVH Adaptive Layered VIX Hedge, which layers VIX calls across short, medium, and long timeframes in a 4/4/2 ratio to cut drawdowns by 35 to 40 percent during volatility spikes. When the EDR exceeds 0.94 percent or VIX rises above 16, the Temporal Theta Martingale activates by rolling threatened positions forward to capture vega, then rolling back on VWAP pullbacks to harvest additional theta, turning the majority of setbacks into net gains without adding capital. The Theta Time Shift mechanism further supports recovery by design. All trading involves substantial risk of loss and is not suitable for all investors. For deeper implementation details including the full EDR indicator on TradingView and live signal examples, explore our SPX Mastery resources and consider joining the VixShield platform for daily 3:10 PM CST signals and PickMyTrade automation on the Conservative tier.