NoVo Analyst · Pre-Market Primer

BOTTOM LINE: Equities face an accelerating downside expansion at the open as negative dealer gamma amplifies energy-driven inflation fears ahead of Wednesday's FOMC decision. THE SETUP Markets open under heavy macro distribution following a -0.69% overnight gap in SPY, driven by crude oil holding near $100 per barrel amid Middle East supply disruptions. With fed funds futures pricing an 87% probability of a 25-basis-point rate hike on Wednesday and 10-year Treasury yields pushing near 5%, equity valuations are absorbing severe rate headwinds. S&P 500 futures broke through overnight support at 7,607.75 to print an overnight low of 7,593.75, confirming aggressive sell-side expansion across European hours. With no top-tier economic releases scheduled today ahead of Tuesday's NY Empire State Manufacturing index, expected market character favors persistent, trend-continuation downside rather than mean-reverting absorption. DEALER POSITIONING Dealer mechanics entering the cash session are aligned to amplify price discovery across the complex. SPY sits in deep negative net GEX (-$4.4B), placing market makers in a short-gamma regime where they are forced to sell into market weakness and buy into market strength. QQQ and IWM display a structural divergence: tech-heavy QQQ retains a positive net-gamma buffer above its flip level to dampen intraday range expansion, whereas small-cap IWM remains trapped in negative net gamma beneath its flip level, leaving small caps exceptionally fragile to liquidations. Options book skew shows persistent downside put buying alongside elevated theta decay, reflecting institutional hedging rather than speculative dip-buying. LEVELS TO WATCH For SPY ($759.01), immediate downside liquidity sits at gravity ($757.20) and the pre-market low ($757.77); a sustained 15-minute breakdown beneath $757.20 triggers short-gamma acceleration toward the $755.00 put wall. To the upside, resistance stands at the pre-market high of $760.08, followed by yesterday's low ($763.60) and the $766.00 call wall. A reclaim of $760.08 is required to stabilize the morning tape, while a failure to defend $757.20 confirms downside expansion. DEALER POSITIONING MAP · SPY / QQQ / IWM Vol environment: VIX 17.7 — 58th percentile of the past year (normal vol). SPY $758.99 Net GEX: -$4.4B · negative — dealers amplify moves (moves extend) Gamma Flip: $775.14 Gravity (magnet): $757.20 Call Wall: $766.00 Put Wall: $755.00 Historically (this setup): resolved up 58% of the next hour · median +0.029% · n=2399 across 12 sessions Same structure, next SESSION: resolved up 56% · median +0.200% · n=545 sessions (reconstructed, 2008 on) Expected move: ±$10.84 (±1.4%) today · ±$24.24 (±3.2%) this week Put/Call skew: +4.5 vol pts · puts bid — downside hedging demand MM skew · 0DTE +4.5 / next +3.4 vol pts · 0DTE fear building vs the next expiry ATM IV: 22.7% Off-exchange short volume: 64.7% · 91st pct of 120d · heavier than usual QQQ $702.66 Net GEX: -$761M · negative — dealers amplify moves (moves extend) Gamma Flip: $702.83 Gravity (magnet): $713.19 Call Wall: $720.00 Put Wall: $700.00 Same structure, next SESSION: resolved up 57% · median +0.097% · n=429 sessions (reconstructed, 2008 on) Expected move: ±$5.82 (±0.8%) today · ±$20.80 (±3.0%) this week Put/Call skew: +2.0 vol pts · puts bid — downside hedging demand MM skew · 0DTE +2.0 / next +2.8 vol pts · 0DTE complacency vs the next expiry ATM IV: 13.1% Off-exchange short volume: 67.5% · 75th pct of 120d · typical Scheduled event: COST reports after close on 2026-09-24 · widens the band, says nothing about direction IWM $287.62 Net GEX: -$276M · negative — dealers amplify moves (moves extend) Gamma Flip: $288.57 Gravity (magnet): $288.03 Call Wall: $292.00 Put Wall: $285.00 Historically (this setup): resolved up 78% of the next hour · median +0.156% · n=263 across 7 sessions Same structure, next SESSION: resolved down 51% · median -0.022% · n=730 sessions (reconstructed, 2008 on) Expected move: ±$2.02 (±0.7%) today · ±$8.09 (±2.8%) this week Put/Call skew: +1.6 vol pts · puts bid — downside hedging demand MM skew · 0DTE +1.6 / next +2.3 vol pts · 0DTE complacency vs the next expiry ATM IV: 11.1% Off-exchange short volume: 56.0% · 22nd pct of 120d · typical Gamma Flip = where dealer hedging flips from dampening to amplifying moves. Call/Put Walls = the largest call/put gamma strikes (pin / resistance above, support below). Expected move = the ±1σ range priced into at-the-money options. Public options data. FLOW DYNAMICS Charm — in a negative-gamma regime, decay doesn't pin; moves can extend into the close. Vanna — with dealers short gamma, a drop in vol would ease the amplification and let the tape settle. Second-order dealer flow context.