Strike Selection
How does the EDR Expected Daily Range actually influence strike selection in 1DTE SPX iron condors?
EDR strike selection 1DTE iron condors RSAi SPX Mastery
VixShield Answer
At VixShield we rely on the EDR Expected Daily Range as the foundational tool for strike selection in our 1DTE SPX Iron Condor Command. Developed by Russell Clark and available as the custom TradingView indicator SPXDCP, the EDR blends short-term implied volatility from VIX9D with 20-day historical volatility to forecast the likely daily price excursion for the S&P 500. The formula EDR equals VIX9D times 0.1 plus HV times 0.5 multiplied by a regime-based factor between 0.8 and 2.0 produces three risk-tuned outputs: High, Medium, and Low range projections that directly map to our Conservative, Balanced, and Aggressive credit tiers. On a typical trading day with SPX at 7138.80 and current VIX at 17.95, an EDR reading of 1.16 percent might translate to an expected daily range of roughly 83 points. We then place the short strikes of the iron condor approximately one full EDR outside the current price, ensuring the wings capture the projected move while targeting specific net credits of 0.70 for Conservative, 1.15 for Balanced, and 1.60 for Aggressive. RSAi, our Rapid Skew AI engine, then fine-tunes these EDR-derived levels in real time by scanning the options skew surface, last four hours of VIX momentum, and SPX position relative to VWAP. This ensures the final strikes deliver the exact premium the market is offering rather than generic probability-based wings. The result is a Set and Forget position placed in the 3:10 PM CST post-close window that avoids PDT concerns and relies on Theta Time Shift for any recovery. When VIX sits at 17.95 and remains below its five-day moving average of 18.58 we keep all three tiers active under our VIX Risk Scaling rules, but if EDR exceeds 0.94 percent we prepare the ALVH Adaptive Layered VIX Hedge for additional protection. This disciplined integration of EDR, RSAi, and our three-tier credit targets has produced an approximate 90 percent win rate on the Conservative tier across backtested periods. All trading involves substantial risk of loss and is not suitable for all investors. To see the EDR indicator in action and access our full daily signals, visit VixShield.com and explore the SPX Mastery resources that power the Unlimited Cash System.
⚠️ Risk Disclaimer: Options trading involves substantial risk of loss and is not appropriate for all investors.
The information on this page is educational only and does not constitute financial advice or a recommendation to buy or sell any security.
Past performance is not indicative of future results. Always consult a qualified financial professional before trading.
💬 Community Pulse
Community traders often approach EDR strike selection by first examining the indicator's projected range and then manually offsetting strikes by one to one-and-a-half times that value to achieve desired credit levels. A common misconception is treating EDR as a simple one-standard-deviation probability tool rather than the dynamic blend of implied and historical volatility that Russell Clark designed for daily 1DTE decisions. Many note how the integration with RSAi skew analysis refines the raw EDR output, preventing wings that look statistically safe but deliver insufficient premium. Experienced members emphasize pairing EDR readings with current VIX regime and contango signals before committing to Conservative, Balanced, or Aggressive tiers, recognizing that elevated EDR readings often precede the need for ALVH layering. Overall the consensus highlights EDR as the cornerstone that transforms subjective strike picking into a repeatable, rules-based process aligned with theta capture and defined-risk methodology.
📖 Glossary Terms Referenced
Put This Knowledge to Work
VixShield delivers professional iron condor signals every trading day, built on the methodology behind these answers.
Start Free Trial →