What Would Change My Mind
2026-10-13 · Counter-thesis
• If CPI prints below 2.8% and SPY closes above the $788 flip level on the print day, dealer gamma flips from negative to positive across the complex, mechanical selling pressure reverses into auto-hedging buy orders, and the five-name hostile positioning unwinds structurally.
• If NVDA breaks above $240 before OPEX while QQQ remains below $745, the largest gamma concentration point in the index separates from its cohort, single-name dealer hedging bifurcates from broad index flows, and the synchronized negative-gamma trade breaks down.
• If SPY closes below $770 into CPI with VIX expanding past 18, dealer gamma hedging accelerates into the decline, volatility premium widens enough to trap short-volatility positioning, and the negative gamma gauntlet transitions from a structural headwind into a realized liquidation cascade.