Should I adjust position size before GDP Growth Rate QoQ Adv?
VixShield Answer
Yes adjust position size before the GDP Growth Rate QoQ Adv release. This number frequently moves SPX 0.6-1.2% in the first 30 minutes and widens implied volatility, directly impacting your iron condor deltas and vega exposure.
Current VIX level matters most. If VIX is below 15, cut size by 30-40% the day before. If VIX sits between 15-20, reduce by 20%. Above 20 you can keep normal size because the elevated premium already prices in uncertainty.
Under the ALVH methodology, treat GDP as a Tier-1 event. Enter or add to iron condors only after the print and initial reaction settle, never expand wing width into the release. Keep your short strikes at least 1.8-2.0 standard deviations from spot and maintain at least 45-50 points of wing width on the SPX to absorb the post-release gamma spike.
Reduce size, tighten your allowable loss threshold to 15% of credit received, and wait for the first 15-minute candle to close before deciding whether to hold the smaller position or roll. This single adjustment dramatically improves monthly win rate around high-impact economic prints.
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