SPY Rejected at 775 Call Wall, Now Grinding Between Gamma Walls

GAMMA BRIEF AI Generated 2026-08-05

SPY opened at 775.89, briefly pierced its 775 call wall to a session high of 776.81, then sold off hard — currently sitting at 771.65, caught between the 775 call wall above and the 770 put wall below. Gold is the real story today: GLD is up +3.91%, a rare day where precious metals are surging while equities are essentially flat, pointing to something deeper than a simple risk-on rally.

NVDA is a notable outlier to the upside, gaining +4.34% to 221.13, while MSFT is dragging at -0.78% and TSLA is off -1.26%. The index-level calm masks real dispersion underneath. With 0DTE expirations active today on the MWF cycle and SPY wedged between two gamma walls, the afternoon is a coin flip without a catalyst — but the opening flow tells a cautionary tale.

Dealer positioning shows a clear regime shift as options market makers adjust hedges across the curve. The put-call skew has compressed significantly, suggesting institutional players are reducing downside protection.

Watch the key level closely at open — it sits exactly at the intersection of the GEX zero line and overnight VWAP. A clean break above opens the path to the call wall; rejection sends us back toward the put wall.

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GEX Walls — Options Positioning

SPX CHOP

Call Wall 8000

Put Wall 7700

Max Pain 7510

Net GEX +$59.1B

SPY CHOP

Call Wall 775

Put Wall 770

Max Pain 756

Net GEX +$6.3B

QQQ CHOP

Call Wall 725

Put Wall 720

Max Pain 700

Net GEX +$3.2B

IWM CHOP

Call Wall 305

Put Wall 295

Max Pain 290

Net GEX $0.2B

ⓘ Trend Bias vs Directional Call

The badge shows momentum bias — where price sits relative to VWAP and moving averages right now. The brief's directional call weighs GEX structure, options flow, and macro signals, and may point the opposite direction when a rally runs into a call wall or flow turns bearish.

GEX walls are a snapshot from brief generation — not a live feed.

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GEX walls are price levels where dealers hedge aggressively. Price tends to gravitate toward Max Pain and stall near walls.

Stock GEX — Extended

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Unusual Options Activity

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Facts — Draw Your Own Conclusions

→DETERMINISTIC: SPY net GEX: +$6.26B — positive gamma regime; call wall 775.0, put wall 770.0, max pain 756.0.

→DETERMINISTIC: SPY session high (776.81) pierced the 775 call wall by +1.81; current last (771.65) is -3.35 below call wall and +1.65 above put wall.

→DETERMINISTIC: QQQ session high (728.52) exceeded call wall (725.0) by +3.52; current last (721.91) is -3.09 below call wall and +1.91 above put wall.

→DETERMINISTIC: Four SPX 0DTE put sweeps at 09:01 ET — strikes 7750/7760/7770/7780 — combined ~$358M premium, vol/OI ratios 14.8x to 165.2x, sentiment: bearish_bet.

→DETERMINISTIC: GLD +3.91%, SLV +4.33%, NVDA +4.34%; SPY +0.04%, MSFT -0.78%, TSLA -1.26% — significant intraday dispersion.

→DETERMINISTIC: VIX session open 17.00, current 16.02 (-1.48%); VVIX session open 92.57, current 89.67 (-0.82%) — volatility premium decaying.

→DETERMINISTIC: SPY 0DTE volume at 72.5% of total; NYSE A/D ratio 0.72 (1145/1586), TRIN 0.67, TICK +105.

→SYNTHESIS: SPX 0DTE put sweeps totaling ~$358M printed in the 775–778 SPY-equivalent zone at 09:01 ET, and SPY's session high of 776.81 subsequently reversed — the sweep strikes and the intraday rejection converge spatially, though the sweeps' directional vs hedge intent cannot be confirmed from flow data alone.

Objective data only. No interpretation. Form your own view.

Key Themes

SPY 775 call wall rejection — morning breakout attempt failed0DTE put sweep cluster at open (~$358M, SPX 7750–7780 strikes)GLD/SLV surge vs flat equities — dollar weakness or inflation bidNVDA outperformance vs broad mega-cap drag (MSFT, TSLA)

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