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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $180.00 Call

MRK270115C00180000

Latest saved OI2,316Oct 23, 2026
Last change+20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $180.00 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. 2,3161,1580 2026-10-02: 2,178 OI2026-10-05: 2,180 OI2026-10-06: 2,177 OI2026-10-07: 2,178 OI2026-10-08: 2,178 OI2026-10-09: 2,178 OI2026-10-13: 2,181 OI2026-10-14: 2,181 OI2026-10-15: 2,183 OI2026-10-16: 2,210 OI2026-10-21: 2,296 OI2026-10-23: 2,316 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, 2026Viewing2,316+20
Oct 21, 20262,296+86
Oct 16, 20262,210+27
Oct 15, 20262,183+2
Oct 14, 20262,1810
Oct 13, 20262,181+3
Oct 09, 20262,1780
Oct 08, 20262,1780
Oct 07, 20262,178+1
Oct 06, 20262,177-3
Oct 05, 20262,180+2
Oct 02, 20262,178No prior observation