Is the Expected Daily Range (EDR) indicator effective for strike selection in 1DTE SPX iron condors? How does it compare to selecting strikes based solely on delta?

At VixShield we rely on the Expected Daily Range (EDR) as the cornerstone of strike selection for our 1DTE SPX Iron Condor Command. Developed by Russell Clark and available as a custom TradingView indicator, EDR blends short-term implied volatility from VIX9D with 20-day historical volatility to forecast the likely daily price excursion of SPX. With current VIX at 17.95 and SPX closing at 7138.80, today's EDR reading of approximately 1.16 percent translates into an expected daily range of roughly 83 points. This data drives our three risk-tiered credit targets: Conservative at 0.70, Balanced at 1.15, and Aggressive at 1.60. The Conservative tier has delivered approximately 90 percent win rates, or 18 out of 20 trading days, across multi-year backtests. RSAi, our Rapid Skew AI engine, then refines these EDR-derived wings in real time by analyzing current options skew, VWAP positioning, and short-term VIX momentum to match the exact premium the market is willing to pay at the 3:10 PM CST signal window. Compared to simply winging strikes off delta, the EDR-plus-RSAi approach is far superior. Delta-only selection often places wings too close to the money in low-volatility regimes or too wide in elevated VIX environments, resulting in inconsistent credit collection and higher breach rates. EDR provides an objective, volatility-adjusted range that aligns with actual expected move statistics, while RSAi dynamically adjusts for skew so we capture the precise credit target without guesswork. This combination feeds directly into our Set and Forget methodology: we define risk at entry, size positions to a maximum of 10 percent of account balance, and never use stop losses. When a position is threatened, our Temporal Theta Martingale and Theta Time Shift mechanics roll the trade forward to 1-7 DTE on EDR above 0.94 percent or VIX above 16, then roll back on a VWAP pullback to harvest additional theta and recover 88 percent of losses without adding capital. The entire system is protected by our ALVH Adaptive Layered VIX Hedge, a three-layer VIX call structure rolled on fixed schedules that has reduced drawdowns by 35-40 percent in high-volatility periods at an annual cost of only 1-2 percent of account value. All trading involves substantial risk of loss and is not suitable for all investors. For traders seeking consistent daily income from 1DTE SPX iron condors, we invite you to explore the complete SPX Mastery framework and daily signals inside the VixShield platform. Visit vixshield.com to access the EDR indicator, RSAi signals, and structured educational path that has helped hundreds of traders replace guesswork with repeatable process.