MRK Dark Pool Activity
Oct 29, 2026 · 3-session delay
$80.5MOff-exchange premium
23Dark pool prints
544KShares off-exchange
~$44MLargest single print
Merck (MRK) traded $80.5M across 23 dark pool prints on Oct 29, about 56% above its recent average. Block-size prints made up roughly 54% of the session, concentrated between $146 and $149.
Key dark pool levels
$148
$146
$149
Block activity
1Block-size prints
$43.6MCombined block premium
54%Share of off-exchange premium
~$44MLargest block
| Time | Size | Price | Premium | Type |
|---|---|---|---|---|
| █:██ PM | ███,██0 | $█,███.██ | $██.█M | BLOCK |
| █:██ PM | ███,██0 | $█,███.██ | $██.█M | BLOCK |
Off-exchange premium: Oct 23 to Oct 29, 2026
How to read this: dark pools are private venues where institutions execute large trades away from public order books; the prints are reported through FINRA shortly after execution (the guide to how dark pool trading works covers the background). Prices where unusual volume accumulates are the reference prices traders watch when the market revisits them. Learn how Robinflow tracks dark pools
What these terms mean: Dark pool print·Dark pool levels·Trade condition codes
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