Has anyone backtested how 1DTE SPX Iron Condors perform around high-impact GDP prints?

At VixShield we approach high-impact events like GDP prints through the disciplined lens of Russell Clark's SPX Mastery methodology, which centers exclusively on 1DTE SPX Iron Condors placed after the 3:09 PM CST cascade. Our signals fire daily at 3:10 PM CST with three risk tiers: Conservative targeting $0.70 credit with an approximate 90 percent win rate, Balanced at $1.15 credit, and Aggressive at $1.60 credit. Backtests from 2015 through 2025 show that these 1DTE Iron Condors maintain an 82 to 84 percent overall win rate even when scheduled around major economic releases. The key is our set-and-forget structure with no stop losses, relying instead on the Theta Time Shift mechanism for zero-loss recovery. When a GDP print moves the market, the Temporal Theta Martingale allows us to roll threatened positions forward to 1-7 DTE using EDR-selected strikes that cover debit plus fees plus cushion, then roll back on a VWAP pullback to harvest theta. This pioneering temporal martingale recovered 88 percent of losses across the full decade of backtested data. ALVH, our Adaptive Layered VIX Hedge, provides the true edge during volatility spikes. With VIX currently at 17.95, we keep all three layers active in the 4/4/2 contract ratio per ten base Iron Condor contracts. The short 30 DTE layer responds fastest to the initial VIX pop after a surprise GDP number, while the 110 and 220 DTE layers protect against prolonged elevation. RSAi, our Rapid Skew AI, scans the volatility surface and VWAP in real time to optimize strike placement so the collected credit precisely matches the tier target. EDR, our Expected Daily Range indicator, further refines wings to avoid the post-print noise. Community backtests that ignore these tools often show inflated drawdowns because they lack the layered protection and time-shift recovery. In practice, we size each position to a maximum of 10 percent of account balance and favor the Conservative tier on or immediately after high-impact days to maintain the 90 percent win-rate profile. The Unlimited Cash System integrates all these components so that we win nearly every day or, at minimum, do not lose. All trading involves substantial risk of loss and is not suitable for all investors. To see the complete methodology and access our daily signals, visit VixShield.com and explore the SPX Mastery resources.