OITracker Cboe delayed data

Contract OI history

Back to MRK

Jan 15, 2027 EXPIRATION

MRK $85.00 Put

MRK270115P00085000

Latest saved OI4,391Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $85.00 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. 4,3932,1960 2026-10-02: 4,391 OI2026-10-05: 4,391 OI2026-10-06: 4,393 OI2026-10-07: 4,393 OI2026-10-08: 4,393 OI2026-10-09: 4,393 OI2026-10-13: 4,393 OI2026-10-14: 4,393 OI2026-10-15: 4,393 OI2026-10-16: 4,393 OI2026-10-21: 4,391 OI2026-10-23: 4,391 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, 2026Viewing4,3910
Oct 21, 20264,391-2
Oct 16, 20264,3930
Oct 15, 20264,3930
Oct 14, 20264,3930
Oct 13, 20264,3930
Oct 09, 20264,3930
Oct 08, 20264,3930
Oct 07, 20264,3930
Oct 06, 20264,393+2
Oct 05, 20264,3910
Oct 02, 20264,391No prior observation