COST Institutional Summary
Oct 29, 2026 · 3-session delay
$85.6MDark pool premium
$1.5MCall premium
+$17.1MNet gamma
3Sweeps
Off-exchange
Dark Pool
$85.6M across 16 prints. Block-size prints made up ~75% of the session.
What is dark pool data? View COST in Dark Pool$996
$990
$988
Order flow
Options Flow
$2.6M premium, 58% calls. Buying concentrated at the $875 strike. 3 sweeps, 4 blocks.
What is options flow? View COST in Options FlowCalls 58%Puts 42%
Dealer positioning
Gamma Exposure
Positive regime, net +$17.1M. Call wall $1,000 · put wall $900.
What is GEX? View COST in Gamma ExposureThis summary is three sessions old. Watch today live.
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