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Contract OI history

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Mar 19, 2027 EXPIRATION

MRK $160.00 Call

MRK270319C00160000

Latest saved OI329Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $160.00 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. 3291640 2026-10-02: 302 OI2026-10-05: 302 OI2026-10-06: 308 OI2026-10-07: 308 OI2026-10-08: 308 OI2026-10-09: 312 OI2026-10-13: 313 OI2026-10-14: 313 OI2026-10-15: 313 OI2026-10-16: 321 OI2026-10-21: 324 OI2026-10-23: 329 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, 2026Viewing329+5
Oct 21, 2026324+3
Oct 16, 2026321+8
Oct 15, 20263130
Oct 14, 20263130
Oct 13, 2026313+1
Oct 09, 2026312+4
Oct 08, 20263080
Oct 07, 20263080
Oct 06, 2026308+6
Oct 05, 20263020
Oct 02, 2026302No prior observation