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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $110.00 Call

MRK261218C00110000

Latest saved OI2,359Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $110.00 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. 2,3691,1840 2026-10-02: 2,369 OI2026-10-05: 2,369 OI2026-10-06: 2,366 OI2026-10-07: 2,366 OI2026-10-08: 2,366 OI2026-10-09: 2,365 OI2026-10-13: 2,364 OI2026-10-14: 2,364 OI2026-10-15: 2,359 OI2026-10-16: 2,359 OI2026-10-21: 2,358 OI2026-10-23: 2,359 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, 2026Viewing2,359+1
Oct 21, 20262,358-1
Oct 16, 20262,3590
Oct 15, 20262,359-5
Oct 14, 20262,3640
Oct 13, 20262,364-1
Oct 09, 20262,365-1
Oct 08, 20262,3660
Oct 07, 20262,3660
Oct 06, 20262,366-3
Oct 05, 20262,3690
Oct 02, 20262,369No prior observation