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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $90.00 Call

MRK270115C00090000

Latest saved OI790Oct 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 $90.00 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. 7973980 2026-10-02: 797 OI2026-10-05: 796 OI2026-10-06: 795 OI2026-10-07: 795 OI2026-10-08: 795 OI2026-10-09: 795 OI2026-10-13: 795 OI2026-10-14: 795 OI2026-10-15: 793 OI2026-10-16: 793 OI2026-10-21: 791 OI2026-10-23: 790 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, 2026Viewing790-1
Oct 21, 2026791-2
Oct 16, 20267930
Oct 15, 2026793-2
Oct 14, 20267950
Oct 13, 20267950
Oct 09, 20267950
Oct 08, 20267950
Oct 07, 20267950
Oct 06, 2026795-1
Oct 05, 2026796-1
Oct 02, 2026797No prior observation