USIG Institutional Summary
Wednesday, September 9, 2026 · 3-session delayed summary
$110MDark pool premium
$0Call premium
+$140KNet gamma
0Sweeps
Off-exchange
Dark Pool
$110M across 1 prints. Block-size prints made up ~100% of the session.
View USIG dark pool What is dark pool data?$50
Order flow
Options Flow
No qualifying activity this session.
View USIG options flow What is options flow?Light session
Dealer positioning
Gamma Exposure
Positive regime, net +$140K. Call wall $51 · put wall $48.
View USIG gamma exposure What is GEX?This summary is three sessions old. Watch today live.
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