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Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $140.00 Call

MRK270617C00140000

Latest saved OI1,291Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $140.00 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. 1,3096540 2026-10-02: 623 OI2026-10-05: 622 OI2026-10-06: 626 OI2026-10-07: 626 OI2026-10-08: 626 OI2026-10-09: 627 OI2026-10-13: 623 OI2026-10-14: 623 OI2026-10-15: 623 OI2026-10-16: 1,309 OI2026-10-21: 1,291 OI2026-10-23: 1,291 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, 2026Viewing1,2910
Oct 21, 20261,291-18
Oct 16, 20261,309+686
Oct 15, 20266230
Oct 14, 20266230
Oct 13, 2026623-4
Oct 09, 2026627+1
Oct 08, 20266260
Oct 07, 20266260
Oct 06, 2026626+4
Oct 05, 2026622-1
Oct 02, 2026623No prior observation