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Dealer positioning

VOO Gamma Exposure (GEX)

Oct 29, 2026 · 3-session delay

+$1.7MNet gamma
$710Call wall
$695Put wall
$702.8Spot at close

Vanguard S&P 500 ETF (VOO) closed that session in a positive gamma regime with net exposure of +$1.7M: dealers hedge by selling rallies and buying dips, which tends to dampen moves and pin price near heavy strikes. The dominant call wall sits at $710, while the put wall at $695 marks the heaviest downside hedging concentration.

Gamma by strike and expiration

How to read this: each column is an expiration, each row a strike. Gold cells mark the largest positive-gamma concentration per expiration (price magnets), purple the most negative (acceleration zones). Walls are where hedging flows are heaviest. Learn how GEX works →

What these terms mean: Gamma exposure·Call wall·Put wall

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More VOO data

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