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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $75.00 Put

MRK261218P00075000

Latest saved OI1,321Oct 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 $75.00 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. 1,3386690 2026-10-02: 1,338 OI2026-10-05: 1,338 OI2026-10-06: 1,338 OI2026-10-07: 1,338 OI2026-10-08: 1,338 OI2026-10-09: 1,338 OI2026-10-13: 1,338 OI2026-10-14: 1,338 OI2026-10-15: 1,338 OI2026-10-16: 1,338 OI2026-10-21: 1,338 OI2026-10-23: 1,321 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, 2026Viewing1,321-17
Oct 21, 20261,3380
Oct 16, 20261,3380
Oct 15, 20261,3380
Oct 14, 20261,3380
Oct 13, 20261,3380
Oct 09, 20261,3380
Oct 08, 20261,3380
Oct 07, 20261,3380
Oct 06, 20261,3380
Oct 05, 20261,3380
Oct 02, 20261,338No prior observation