OITracker Cboe delayed data

Contract OI history

Back to MRK

Mar 19, 2027 EXPIRATION

MRK $100.00 Put

MRK270319P00100000

Latest saved OI1,082Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $100.00 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. 1,0825410 2026-10-02: 1,056 OI2026-10-05: 1,056 OI2026-10-06: 1,056 OI2026-10-07: 1,056 OI2026-10-08: 1,056 OI2026-10-09: 1,060 OI2026-10-13: 1,060 OI2026-10-14: 1,060 OI2026-10-15: 1,082 OI2026-10-16: 1,082 OI2026-10-21: 1,082 OI2026-10-23: 1,082 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, 2026Viewing1,0820
Oct 21, 20261,0820
Oct 16, 20261,0820
Oct 15, 20261,082+22
Oct 14, 20261,0600
Oct 13, 20261,0600
Oct 09, 20261,060+4
Oct 08, 20261,0560
Oct 07, 20261,0560
Oct 06, 20261,0560
Oct 05, 20261,0560
Oct 02, 20261,056No prior observation