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Contract OI history

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Mar 19, 2027 EXPIRATION

MRK $125.00 Put

MRK270319P00125000

Latest saved OI1,504Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $125.00 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. 1,5117550 2026-10-02: 1,431 OI2026-10-05: 1,438 OI2026-10-06: 1,444 OI2026-10-07: 1,432 OI2026-10-08: 1,432 OI2026-10-09: 1,441 OI2026-10-13: 1,476 OI2026-10-14: 1,476 OI2026-10-15: 1,476 OI2026-10-16: 1,476 OI2026-10-21: 1,511 OI2026-10-23: 1,504 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, 2026Viewing1,504-7
Oct 21, 20261,511+35
Oct 16, 20261,4760
Oct 15, 20261,4760
Oct 14, 20261,4760
Oct 13, 20261,476+35
Oct 09, 20261,441+9
Oct 08, 20261,4320
Oct 07, 20261,432-12
Oct 06, 20261,444+6
Oct 05, 20261,438+7
Oct 02, 20261,431No prior observation