OITracker Cboe delayed data

Contract OI history

Back to MRK

Mar 19, 2027 EXPIRATION

MRK $105.00 Put

MRK270319P00105000

Latest saved OI1,431Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $105.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,4317150 2026-10-02: 1,413 OI2026-10-05: 1,413 OI2026-10-06: 1,415 OI2026-10-07: 1,417 OI2026-10-08: 1,417 OI2026-10-09: 1,417 OI2026-10-13: 1,417 OI2026-10-14: 1,417 OI2026-10-15: 1,417 OI2026-10-16: 1,417 OI2026-10-21: 1,418 OI2026-10-23: 1,431 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, 2026Viewing1,431+13
Oct 21, 20261,418+1
Oct 16, 20261,4170
Oct 15, 20261,4170
Oct 14, 20261,4170
Oct 13, 20261,4170
Oct 09, 20261,4170
Oct 08, 20261,4170
Oct 07, 20261,417+2
Oct 06, 20261,415+2
Oct 05, 20261,4130
Oct 02, 20261,413No prior observation