Should I adjust position size before Core Inflation Rate MoM?
VixShield Answer
Yes adjust your position size before the Core Inflation Rate MoM release.
With SPX iron condors the event carries high gamma risk and can produce 1.5-2% moves in the index even when VIX is in the 13-16 range. Under the ALVH methodology you reduce size to 50-60% of normal when any CPI release is within 48 hours. This protects your defined-risk wings from sudden expansion in implied volatility and prevents the short strikes from being pinned inside a fast move.
Keep your wing width at 25-30 points on the SPX. Do not widen them to chase credit. Smaller size plus standard wings gives you better theta-to-gamma ratio heading into the print. After the number prints and VIX settles you can scale back to full size on the next setup.
Trade the highest-probability setups only. Skip the trade entirely if your short strikes sit inside expected move ranges derived from current VIX.
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