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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $90.00 Put

MRK270115P00090000

Latest saved OI4,444Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $90.00 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. 4,4442,2220 2026-10-02: 4,435 OI2026-10-05: 4,437 OI2026-10-06: 4,436 OI2026-10-07: 4,436 OI2026-10-08: 4,436 OI2026-10-09: 4,437 OI2026-10-13: 4,435 OI2026-10-14: 4,435 OI2026-10-15: 4,435 OI2026-10-16: 4,431 OI2026-10-21: 4,430 OI2026-10-23: 4,444 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, 2026Viewing4,444+14
Oct 21, 20264,430-1
Oct 16, 20264,431-4
Oct 15, 20264,4350
Oct 14, 20264,4350
Oct 13, 20264,435-2
Oct 09, 20264,437+1
Oct 08, 20264,4360
Oct 07, 20264,4360
Oct 06, 20264,436-1
Oct 05, 20264,437+2
Oct 02, 20264,435No prior observation