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Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $150.00 Call

MRK261120C00150000

Latest saved OI6,504Oct 23, 2026
Last change+501vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $150.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6,5043,2520 2026-10-02: 5,326 OI2026-10-05: 5,334 OI2026-10-06: 5,294 OI2026-10-07: 5,293 OI2026-10-08: 5,293 OI2026-10-09: 5,932 OI2026-10-13: 5,937 OI2026-10-14: 5,937 OI2026-10-15: 5,936 OI2026-10-16: 5,927 OI2026-10-21: 6,003 OI2026-10-23: 6,504 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6,504+501
Oct 21, 20266,003+76
Oct 16, 20265,927-9
Oct 15, 20265,936-1
Oct 14, 20265,9370
Oct 13, 20265,937+5
Oct 09, 20265,932+639
Oct 08, 20265,2930
Oct 07, 20265,293-1
Oct 06, 20265,294-40
Oct 05, 20265,334+8
Oct 02, 20265,326No prior observation