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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $147.00 Call

MRK261023C00147000

Latest saved OI553Oct 23, 2026
Last change-222vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $147.00 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. 8654320 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 811 OI2026-10-07: 822 OI2026-10-08: 822 OI2026-10-09: 865 OI2026-10-13: 846 OI2026-10-14: 846 OI2026-10-15: 460 OI2026-10-16: 726 OI2026-10-21: 775 OI2026-10-23: 553 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, 2026Viewing553-222
Oct 21, 2026775+49
Oct 16, 2026726+266
Oct 15, 2026460-386
Oct 14, 20268460
Oct 13, 2026846-19
Oct 09, 2026865+43
Oct 08, 20268220
Oct 07, 2026822+11
Oct 06, 2026811+808
Oct 05, 202630
Oct 02, 20263No prior observation