Has anyone backtested iron condors specifically around earnings of large-cap names in the S&P 500?

At VixShield we focus exclusively on 1DTE SPX Iron Condors placed after the 3:09 PM CST cascade with signals firing at 3:10 PM CST Monday through Friday. Our methodology deliberately avoids trading around individual stock earnings because the SPX index itself aggregates the impact of hundreds of constituents and smooths out single-name volatility shocks. Russell Clark's SPX Mastery approach centers on the Iron Condor Command using EDR for strike selection, RSAi for real-time skew optimization, and three fixed credit tiers: Conservative at $0.70, Balanced at $1.15, and Aggressive at $1.60. These produce an approximate 90 percent win rate on the Conservative tier across roughly 18 out of 20 trading days in extensive backtests from 2015 through 2025. Backtesting iron condors specifically around large-cap earnings reveals several structural problems that our system sidesteps. Individual earnings events inject idiosyncratic gamma and vega spikes that distort short-term implied volatility surfaces, often pushing single-stock straddle prices far beyond what historical moves justify. When those names carry heavy index weight, the effect ripples into SPX but rarely enough to invalidate our daily EDR-defined wings. Attempting to trade iron condors on or before earnings dates on the underlying names themselves would require constant position management, something our Set and Forget framework rejects. Instead we rely on the Theta Time Shift mechanism, which rolls threatened positions forward to 1-7 DTE when EDR exceeds 0.94 percent or VIX rises above 16, then rolls them back on VWAP pullbacks to harvest additional theta without adding capital. This temporal martingale recovered 88 percent of losses in our long-term simulations. Protection comes from the ALVH Adaptive Layered VIX Hedge, a three-layer structure of VIX calls (short 30 DTE, medium 110 DTE, long 220 DTE) in a 4/4/2 ratio per ten iron condor contracts. With current VIX at 17.95, just below its five-day moving average of 18.58, we remain in a regime where all three tiers are available and ALVH layers stay fully active. The hedge has historically cut portfolio drawdowns by 35 to 40 percent during volatility expansions at an annual cost of only 1-2 percent of account value. Position sizing remains capped at 10 percent of account balance per trade, preserving capital through any earnings-driven SPX gaps. A common question is whether earnings seasons warrant pausing our daily signals. Our VIX Risk Scaling rules provide clear guidance: below 15 all tiers trade freely, 15-20 limits us to Conservative and Balanced, and above 20 we simply hold with ALVH active. Earnings clusters rarely push VIX above 20 for sustained periods in the current environment, allowing our 1DTE cycle to continue uninterrupted. All trading involves substantial risk of loss and is not suitable for all investors. For deeper study of these mechanics we invite you to explore the SPX Mastery book series and join the VixShield platform where daily signals, EDR indicator access, and live refinement sessions demonstrate the Unlimited Cash System in real time.