SPY pinned at call wall with weekly expiry gravity pulling toward 760

GAMMA BRIEF AI Generated 2026-08-28

SPY is opening essentially flat — within a dollar of yesterday's close — right on top of its 772 call wall, a structural ceiling that capped yesterday's session high at 772.35. With today being a Friday weekly expiry for SPY, QQQ, and SPX, the magnetic pull of max pain at 760 is the defining tension of this session.

IWM is the most interesting setup: it spent yesterday's session testing the 300 call wall, touching 300.31 intraday, and is now sitting just below that level at 299.76 pre-market. Small-caps carry negative net GEX (-$1.22B) — the lone bear in a room where SPY and QQQ carry positive positioning — making IWM's ability to hold 300 a key read on overall risk appetite today.

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 BEARISH

Call Wall 8000

Put Wall 7725

Max Pain 7540

Net GEX +$50.7B

SPY BEARISH

Call Wall 772

Put Wall 760

Max Pain 760

Net GEX +$5.0B

QQQ CHOP

Call Wall 730

Put Wall 700

Max Pain 705

Net GEX +$6.2B

IWM BULLISH

Call Wall 300

Put Wall 295

Max Pain 295

Net GEX $1.2B

ⓘ 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 +$5.04B, call wall 772.0, put wall 760.0, max pain 760.0 — positive gamma regime.

→DETERMINISTIC: QQQ net GEX +$6.16B, call wall 730.0, put wall 700.0, max pain 705.0 — highest net GEX of the three.

→DETERMINISTIC: IWM net GEX -$1.22B — the only negative gamma regime among SPY/QQQ/IWM today.

→DETERMINISTIC: SPY pre-market last 772.08 is +0.08 above the 772.0 call wall (per pre-computed distances); yesterday's RTH high 772.35 was +0.35 above that same wall.

→DETERMINISTIC: VIX pre-market 14.46 (-0.07%), VVIX 82.90 (flat) — low volatility regime, no vol-of-vol stress.

→DETERMINISTIC: SPY 0DTE volume at 71.7% of total SPY options volume — elevated intraday gamma sensitivity.

→DETERMINISTIC: NYSE A/D ratio 23/1519 (net -1,496) at pre-market breadth read — extremely narrow participation.

→SYNTHESIS: IWM trend bias is BULLISH (score +21, above 299.72 VWAP) but net GEX is -$1.22B (negative gamma) with max pain at 295.0 — positive price structure conflicts with negative dealer positioning, making IWM the highest-uncertainty instrument today.

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

Key Themes

SPY pinned at 772 call wall on weekly expiryIWM negative GEX vs bullish trend bias — high uncertaintyZero UOA above threshold — no institutional directional tell71.7% 0DTE SPY volume amplifying intraday gamma at key strikes

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Directional Calls

SPY RANGE-BOUND

QQQ BULLISH

IWM NEUTRAL