HYG Institutional Summary
Wednesday, September 9, 2026 · 3-session delayed summary
$301MDark pool premium
$0Call premium
−$8BNet gamma
3Sweeps
Off-exchange
Dark Pool
$301M across 46 prints. Block-size prints made up ~79% of the session.
View HYG dark pool What is dark pool data?$79
$79
$79
Order flow
Options Flow
$7.3M premium, 0% calls. Buying concentrated at the $79 strike. 3 sweeps, 18 blocks.
View HYG options flow What is options flow?Calls 0%Puts 100%
Dealer positioning
Gamma Exposure
Negative regime, net −$8B. Call wall $80 · put wall $79.
View HYG gamma exposure What is GEX?This summary is three sessions old. Watch today live.
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