OITracker Cboe delayed data

Contract OI history

Back to MRK

Jan 15, 2027 EXPIRATION

MRK $150.00 Call

MRK270115C00150000

Latest saved OI3,444Oct 23, 2026
Last change+105vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $150.00 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. 3,4441,7220 2026-10-02: 3,062 OI2026-10-05: 3,062 OI2026-10-06: 3,102 OI2026-10-07: 3,185 OI2026-10-08: 3,185 OI2026-10-09: 3,263 OI2026-10-13: 3,299 OI2026-10-14: 3,299 OI2026-10-15: 3,299 OI2026-10-16: 3,297 OI2026-10-21: 3,339 OI2026-10-23: 3,444 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, 2026Viewing3,444+105
Oct 21, 20263,339+42
Oct 16, 20263,297-2
Oct 15, 20263,2990
Oct 14, 20263,2990
Oct 13, 20263,299+36
Oct 09, 20263,263+78
Oct 08, 20263,1850
Oct 07, 20263,185+83
Oct 06, 20263,102+40
Oct 05, 20263,0620
Oct 02, 20263,062No prior observation