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Contract OI history

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Oct 30, 2026 EXPIRATION

MRK $145.00 Call

MRK261030C00145000

Latest saved OI133Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $145.00 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. 133660 2026-10-02: 26 OI2026-10-05: 47 OI2026-10-06: 54 OI2026-10-07: 53 OI2026-10-08: 53 OI2026-10-09: 62 OI2026-10-13: 68 OI2026-10-14: 68 OI2026-10-15: 70 OI2026-10-16: 73 OI2026-10-21: 124 OI2026-10-23: 133 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, 2026Viewing133+9
Oct 21, 2026124+51
Oct 16, 202673+3
Oct 15, 202670+2
Oct 14, 2026680
Oct 13, 202668+6
Oct 09, 202662+9
Oct 08, 2026530
Oct 07, 202653-1
Oct 06, 202654+7
Oct 05, 202647+21
Oct 02, 202626No prior observation