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Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $145.00 Call

MRK261120C00145000

Latest saved OI7,855Oct 23, 2026
Last change+1,451vs 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. 7,8553,9270 2026-10-02: 2,518 OI2026-10-05: 2,529 OI2026-10-06: 4,690 OI2026-10-07: 5,096 OI2026-10-08: 5,096 OI2026-10-09: 5,203 OI2026-10-13: 5,201 OI2026-10-14: 5,201 OI2026-10-15: 5,224 OI2026-10-16: 5,215 OI2026-10-21: 6,404 OI2026-10-23: 7,855 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, 2026Viewing7,855+1,451
Oct 21, 20266,404+1,189
Oct 16, 20265,215-9
Oct 15, 20265,224+23
Oct 14, 20265,2010
Oct 13, 20265,201-2
Oct 09, 20265,203+107
Oct 08, 20265,0960
Oct 07, 20265,096+406
Oct 06, 20264,690+2,161
Oct 05, 20262,529+11
Oct 02, 20262,518No prior observation