OITracker Cboe delayed data

Contract OI history

Back to MRK

Dec 17, 2027 EXPIRATION

MRK $50.00 Put

MRK271217P00050000

Latest saved OI533Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $50.00 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. 5642820 2026-10-02: 564 OI2026-10-05: 564 OI2026-10-06: 564 OI2026-10-07: 564 OI2026-10-08: 564 OI2026-10-09: 546 OI2026-10-13: 544 OI2026-10-14: 544 OI2026-10-15: 536 OI2026-10-16: 536 OI2026-10-21: 534 OI2026-10-23: 533 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, 2026Viewing533-1
Oct 21, 2026534-2
Oct 16, 20265360
Oct 15, 2026536-8
Oct 14, 20265440
Oct 13, 2026544-2
Oct 09, 2026546-18
Oct 08, 20265640
Oct 07, 20265640
Oct 06, 20265640
Oct 05, 20265640
Oct 02, 2026564No prior observation