OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $147.00 Put

MRK261120P00147000

Latest saved OI501Oct 23, 2026
Last change+499vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $147.00 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 5012500 2026-10-21: 2 OI2026-10-23: 501 OI Oct 21, 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, 2026Viewing501+499
Oct 21, 20262No prior observation