OITracker Cboe delayed data

Contract OI history

Back to MRK

Mar 19, 2027 EXPIRATION

MRK $115.00 Put

MRK270319P00115000

Latest saved OI1,013Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $115.00 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. 1,0135060 2026-10-02: 962 OI2026-10-05: 962 OI2026-10-06: 972 OI2026-10-07: 972 OI2026-10-08: 972 OI2026-10-09: 984 OI2026-10-13: 997 OI2026-10-14: 997 OI2026-10-15: 997 OI2026-10-16: 997 OI2026-10-21: 996 OI2026-10-23: 1,013 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, 2026Viewing1,013+17
Oct 21, 2026996-1
Oct 16, 20269970
Oct 15, 20269970
Oct 14, 20269970
Oct 13, 2026997+13
Oct 09, 2026984+12
Oct 08, 20269720
Oct 07, 20269720
Oct 06, 2026972+10
Oct 05, 20269620
Oct 02, 2026962No prior observation