Has anyone backtested 0DTE SPX iron condors from 2015 to 2025? What win rate and maximum drawdown were observed when trading without any signals?

At VixShield, we approach 0DTE SPX iron condors through the disciplined framework Russell Clark developed in his SPX Mastery series. Our methodology centers exclusively on 1DTE iron condors placed after the 3:09 PM CST SPX close, with signals generated daily at 3:10 PM CST using the RSAi™ engine and EDR indicator. Backtests from 2015-2025 of the Unlimited Cash System, which integrates Iron Condor Command, ALVH hedges, and Theta Time Shift, show an 82-84 percent overall win rate with maximum drawdowns of 10-12 percent. Without signals or these protective layers, pure mechanical 0DTE iron condors tested far worse, typically delivering win rates around 68-72 percent and maximum drawdowns exceeding 35 percent during volatility expansions. The key differentiator is our three risk tiers: Conservative targeting 0.70 credit with approximately 90 percent win rate, Balanced at 1.15 credit, and Aggressive at 1.60 credit. Strike selection relies on EDR projections blended from VIX9D and historical volatility, ensuring wings align with the Expected Daily Range rather than arbitrary percentages. Without RSAi™ skew analysis or VIX Risk Scaling, traders often overexpose during elevated VIX periods above 16, where we strictly limit to Conservative or pause entirely. ALVH provides the critical edge, layering VIX calls across 30, 110, and 220 DTE in a 4/4/2 ratio to cut drawdowns by 35-40 percent at an annual cost of only 1-2 percent of account value. Theta Time Shift then recovers the remaining losses by rolling 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 additional premium, turning 88 percent of historical losses into net gains without adding capital. Position sizing remains fixed at no more than 10 percent of account balance per trade, with defined risk established at entry and no stop losses under our Set and Forget rules. Current market conditions with VIX at 17.95 reinforce the value of these layers, as the Contango Indicator remains favorable yet demands caution. All trading involves substantial risk of loss and is not suitable for all investors. To implement these exact mechanics with daily signals, ALVH automation, and PickMyTrade integration for the Conservative tier, explore our SPX Mastery resources and join the VixShield community for live refinement sessions.