SPY Institutional Summary
Wednesday, September 9, 2026 · 3-session delayed summary
$1.4BDark pool premium
$129MCall premium
−$1.6BNet gamma
502Sweeps
Off-exchange
Dark Pool
$1.4B across 539 prints. Block-size prints made up ~30% of the session.
View SPY dark pool What is dark pool data?$762
$762
$763
Order flow
Options Flow
$338M premium, 38% calls. Buying concentrated at the $750 strike. 502 sweeps, 565 blocks.
View SPY options flow What is options flow?Calls 38%Puts 62%
Dealer positioning
Gamma Exposure
Negative regime, net −$1.6B. Call wall $775 · put wall $760.
View SPY gamma exposure What is GEX?This summary is three sessions old. Watch today live.
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