SPY pinned below put wall, gold surges, MSFT drags tech into chop

GAMMA BRIEF AI Generated 2026-08-17

Monday's session has been a study in compression: SPY has spent the entire day within a $1.88 range, unable to reclaim Friday's close, while GLD is up 1.10% — the loudest risk-off signal in today's tape. With 73.3% of SPY volume in 0DTE contracts and the index sitting just above its 775 put wall, the afternoon setup is about whether that floor holds or becomes the next level to test.

MSFT is down 2.57% on the day, dragging from a session high of 492.56 to a low of 481.68 — a move that helps explain why QQQ can't sustain any upside despite NVDA's +0.83% gain. NYSE breadth is decisively negative at 928 advancers vs 1,795 decliners (A/D ratio 0.52), and IWM is trading in a tight range just below its 305 call wall. The afternoon question: does 0DTE gravity pin the tape into the close, or does deteriorating breadth finally break the put walls?

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 7800

Put Wall 7750

Max Pain 7600

Net GEX +$21.5B

SPY BEARISH

Call Wall 780

Put Wall 775

Max Pain 760

Net GEX +$2.0B

QQQ CHOP

Call Wall 735

Put Wall 730

Max Pain 705

Net GEX +$7.0B

IWM CHOP

Call Wall 305

Put Wall 295

Max Pain 295

Net GEX +$0.1B

ⓘ 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 +$1.95B; call wall 780.0, put wall 775.0, max pain 760.0.

→DETERMINISTIC: SPY last (775.32) is +0.32 above put wall (775.0); session low (774.89) was -0.11 below put wall — wall was briefly breached intraday.

→DETERMINISTIC: SPY trend bias BEARISH, score -48, confidence 68% — below VWAP (775.81), bearish 5m+15m EMAs, lower high/lower low structure.

→DETERMINISTIC: NYSE A/D ratio 0.52 (928 advancers vs 1,795 decliners), TICK +27, TRIN 0.95 — breadth decidedly negative.

→DETERMINISTIC: MSFT session range 481.68–492.56, last 482.68 (-2.57% vs prior close). GLD +1.10%, session high 406.18.

→DETERMINISTIC: SPY 0DTE volume at 73.3% of total; VIX 15.02, VVIX 93.93 — no unusual options activity above $50M threshold today.

→DETERMINISTIC: QQQ session high 734.41 reached within 0.59 of 735.0 call wall before reversing; IWM session high 304.33 reached within 0.67 of 305.0 call wall.

→SYNTHESIS: GLD +1.10% signals risk-off positioning while VIX is effectively unchanged at 15.02 — the two most common fear indicators are diverging, making it difficult to assess whether equity weakness has a macro catalyst or is purely GEX/breadth-driven.

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

Key Themes

0DTE pin risk near SPY 775 put wallMSFT -2.57% dragging Nasdaq into chopGold/VIX divergence — risk-off signal without equity stress confirmationCall wall rejections: QQQ 735, IWM 305 both tested and reversed

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Directional Calls

SPY BEARISH

QQQ RANGE-BOUND

IWM NEUTRAL