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Contract OI history

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Mar 19, 2027 EXPIRATION

MRK $150.00 Call

MRK270319C00150000

Latest saved OI844Oct 23, 2026
Last change+7vs 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. 8484240 2026-10-02: 808 OI2026-10-05: 809 OI2026-10-06: 801 OI2026-10-07: 821 OI2026-10-08: 821 OI2026-10-09: 842 OI2026-10-13: 846 OI2026-10-14: 846 OI2026-10-15: 848 OI2026-10-16: 799 OI2026-10-21: 837 OI2026-10-23: 844 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, 2026Viewing844+7
Oct 21, 2026837+38
Oct 16, 2026799-49
Oct 15, 2026848+2
Oct 14, 20268460
Oct 13, 2026846+4
Oct 09, 2026842+21
Oct 08, 20268210
Oct 07, 2026821+20
Oct 06, 2026801-8
Oct 05, 2026809+1
Oct 02, 2026808No prior observation