NoVo Analyst · Closing Bell Synopsis

BOTTOM LINE: Equities staged a late-session reversal to close higher across the complex, shifting SPY back into a positive-gamma regime where dealer flows favor stabilization over expansion. THE RECAP The index complex executed a clean intraday turnaround Wednesday, shaking off early macroeconomic pressure to close green across the board. Equity futures initially struggled after July core PCE inflation remained sticky at 3.3% year-over-year while headline PCE rose to 3.7%, driving Treasury yields higher alongside a confirmed deceleration in second-quarter U.S. GDP growth to an annualized 1.5%. SPY ($767.15, +0.16%) reclaimed its prior-day high ($766.78) and opening-range high ($766.60) into the bell, trading above its session VWAP. QQQ ($712.88) and small-cap IWM ($299.11) advanced in unison, shifting the tape from midday sell-side pressure into a unified bid led by tech duration and small-cap broad participation as markets await Fed Chair Kevin Warsh's Jackson Hole address. DEALER POSITIONING Market maker posture flipped back into alignment across all three major benchmark funds by the close. SPY's net gamma profile shifted back into positive territory, matching the positive-gamma regimes active in both QQQ and IWM. In this environment, dealer hedging mechanics act as a shock absorber—mechanically buying dips and selling rips to dampen volatility and suppress directional range expansion. Across the options book, standing open interest reflects a mild net-long delta tilt alongside daily theta decay, imposing a time penalty on stagnant positions while vega exposure leaves the complex sensitive to sudden shifts in implied volatility ahead of major policy catalysts. TOMORROW'S SETUP For SPY, buyers hold the structural edge as long as price defends prior-day high support at 766.78 and opening-range high support at 766.60. Holding above the 766.40 to 766.28 zone keeps the bid intact, targeting a move toward call wall resistance at 769.00; a 15-minute close back below 765.40 invalidates the bullish posture and re-opens downside gravity toward opening-range low support at 764.68 and pre-market low support at 764.47. For QQQ and IWM, maintaining trade above their respective session VWAPs and holding their upper call walls is required to extend today's advance; losing session VWAP hands control back to sell-side flows into Thursday's macro open. DEALER POSITIONING MAP · SPY / QQQ / IWM Vol environment: VIX 15.2 — 11th percentile of the past year (very low vol). SPY $767.15 Net GEX: +$157M · positive — dealers dampen moves (grind / mean-revert) Gamma Flip: $765.40 Gravity (magnet): $766.59 Call Wall: $769.00 Put Wall: $760.00 Historically (this setup): resolved down 53% of the next hour · median -0.008% · n=269 across 5 sessions Expected move: ±$7.26 (±0.9%) today · ±$16.44 (±2.1%) this week Put/Call skew: +0.9 vol pts · roughly balanced IV rank: 90 (20d) · ATM IV 15.0% Off-exchange short volume: 63.1% · 88th pct of 120d · heavier than usual Scheduled event: NVDA reports after close on 2026-08-26 · widens the band, says nothing about direction QQQ $712.88 Net GEX: +$403M · positive — dealers dampen moves (grind / mean-revert) Gamma Flip: $710.63 Gravity (magnet): $711.97 Call Wall: $715.00 Put Wall: $700.00 Expected move: ±$10.50 (±1.5%) today · ±$23.48 (±3.3%) this week Put/Call skew: +2.3 vol pts · puts bid — downside hedging demand MM skew · 0DTE +2.3 / next +2.9 vol pts · 0DTE complacency vs the next expiry IV rank: 68 (20d) · ATM IV 23.4% Off-exchange short volume: 47.1% · 5th pct of 120d · lighter than usual Scheduled event: NVDA reports after close on 2026-08-26 · widens the band, says nothing about direction IWM $299.11 Net GEX: -$305M · negative — dealers amplify moves (moves extend) Gamma Flip: $301.40 Gravity (magnet): $297.74 Call Wall: $303.00 Put Wall: $295.00 Historically (this setup): resolved down 53% of the next hour · median -0.003% · n=858 across 7 sessions Expected move: ±$2.74 (±0.9%) today · ±$8.03 (±2.7%) this week Put/Call skew: +1.0 vol pts · roughly balanced MM skew · 0DTE +1.0 / next +1.9 vol pts · 0DTE complacency vs the next expiry IV rank: 45 (20d) · ATM IV 14.5% Off-exchange short volume: 74.1% · 92nd pct of 120d · heavier than usual 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 — as today's options decayed into the close, dealer delta drifted toward the walls (the pin); that pull now eases as the session's gamma rolls off. Vanna — vol is low and dealers are long gamma; a VIX spike would flip them toward selling into weakness (amplifying) — the risk that changes the map. Second-order dealer flow context.