OITracker Cboe delayed data

Contract OI history

Back to MRK

Jan 15, 2027 EXPIRATION

MRK $100.00 Call

MRK270115C00100000

Latest saved OI7,711Oct 23, 2026
Last change-18vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $100.00 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. 7,7693,8840 2026-10-02: 7,769 OI2026-10-05: 7,769 OI2026-10-06: 7,763 OI2026-10-07: 7,763 OI2026-10-08: 7,763 OI2026-10-09: 7,748 OI2026-10-13: 7,744 OI2026-10-14: 7,744 OI2026-10-15: 7,740 OI2026-10-16: 7,735 OI2026-10-21: 7,729 OI2026-10-23: 7,711 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, 2026Viewing7,711-18
Oct 21, 20267,729-6
Oct 16, 20267,735-5
Oct 15, 20267,740-4
Oct 14, 20267,7440
Oct 13, 20267,744-4
Oct 09, 20267,748-15
Oct 08, 20267,7630
Oct 07, 20267,7630
Oct 06, 20267,763-6
Oct 05, 20267,7690
Oct 02, 20267,769No prior observation