OITracker Cboe delayed data

Contract OI history

Back to MRK

Mar 19, 2027 EXPIRATION

MRK $170.00 Call

MRK270319C00170000

Latest saved OI693Oct 23, 2026
Last change+31vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $170.00 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. 6933460 2026-10-02: 577 OI2026-10-05: 574 OI2026-10-06: 601 OI2026-10-07: 601 OI2026-10-08: 601 OI2026-10-09: 629 OI2026-10-13: 634 OI2026-10-14: 634 OI2026-10-15: 645 OI2026-10-16: 648 OI2026-10-21: 662 OI2026-10-23: 693 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, 2026Viewing693+31
Oct 21, 2026662+14
Oct 16, 2026648+3
Oct 15, 2026645+11
Oct 14, 20266340
Oct 13, 2026634+5
Oct 09, 2026629+28
Oct 08, 20266010
Oct 07, 20266010
Oct 06, 2026601+27
Oct 05, 2026574-3
Oct 02, 2026577No prior observation