How reliable is an RSI reading above 70 for selecting strikes in 1DTE SPX iron condors? Backtests appear to show limited effectiveness.

At VixShield, we rely on a disciplined, data-driven approach to 1DTE SPX Iron Condor trading rather than traditional technical indicators like RSI above 70 for strike selection. Russell Clark's SPX Mastery methodology centers on the Expected Daily Range (EDR) indicator, RSAi (Rapid Skew AI), and real-time VIX levels to generate precise strike recommendations that match the premium the market is willing to pay. Our signals fire daily at 3:10 PM CST after the SPX close, delivering three risk tiers: Conservative targeting a $0.70 credit with approximately 90 percent win rate, Balanced at $1.15, and Aggressive at $1.60. These are placed using EDR-guided wings that capture the projected daily move derived from VIX9D and historical volatility, avoiding the pitfalls of lagging oscillators. RSI above 70 often signals overbought conditions on longer timeframes, yet in 1DTE environments it frequently produces false signals because intraday momentum can persist or reverse rapidly within the Expected Daily Range. Backtests of RSI-based rules on SPX show win rates hovering around 55-65 percent with inconsistent credit capture, largely because RSI ignores volatility skew, VWAP positioning, and the contango regime that favors premium sellers when VIX sits below 20. In contrast, our RSAi engine analyzes skew in 253 milliseconds, adjusting wings in $5 increments until the exact credit target is met while keeping delta under 0.18 and gamma below 0.05. The Adaptive Layered VIX Hedge (ALVH) provides additional protection across three timeframes in a 4/4/2 ratio, cutting drawdowns by 35-40 percent during spikes with an annual cost of only 1-2 percent of account value. We operate under a Set and Forget framework with no stop losses, allowing the Theta Time Shift mechanism to roll threatened positions forward to 1-7 DTE on EDR above 0.94 percent or VIX above 16, then rolling back on VWAP pullbacks to harvest recovery credits of $250-500 per contract. Current market data shows VIX at 17.95, below its five-day moving average of 18.58 and in strong contango, supporting full tier deployment. Position sizing remains at maximum 10 percent of account balance. All trading involves substantial risk of loss and is not suitable for all investors. For deeper implementation details including the full EDR indicator and live signal workflow, explore the SPX Mastery book series and join the VixShield education platform at vixshield.com.