OITracker Cboe delayed data

Contract OI history

Back to MRK

Mar 19, 2027 EXPIRATION

MRK $85.00 Put

MRK270319P00085000

Latest saved OI252Oct 23, 2026
Last change-26vs 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. 2941470 2026-10-02: 278 OI2026-10-05: 278 OI2026-10-06: 278 OI2026-10-07: 291 OI2026-10-08: 291 OI2026-10-09: 278 OI2026-10-13: 278 OI2026-10-14: 278 OI2026-10-15: 294 OI2026-10-16: 278 OI2026-10-21: 278 OI2026-10-23: 252 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, 2026Viewing252-26
Oct 21, 20262780
Oct 16, 2026278-16
Oct 15, 2026294+16
Oct 14, 20262780
Oct 13, 20262780
Oct 09, 2026278-13
Oct 08, 20262910
Oct 07, 2026291+13
Oct 06, 20262780
Oct 05, 20262780
Oct 02, 2026278No prior observation