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Contract OI history

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Apr 16, 2027 EXPIRATION

MRK $125.00 Put

MRK270416P00125000

Latest saved OI471Oct 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 $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. 4712350 2026-10-02: 132 OI2026-10-05: 132 OI2026-10-06: 138 OI2026-10-07: 148 OI2026-10-08: 148 OI2026-10-09: 161 OI2026-10-13: 290 OI2026-10-14: 290 OI2026-10-15: 297 OI2026-10-16: 434 OI2026-10-21: 454 OI2026-10-23: 471 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, 2026Viewing471+17
Oct 21, 2026454+20
Oct 16, 2026434+137
Oct 15, 2026297+7
Oct 14, 20262900
Oct 13, 2026290+129
Oct 09, 2026161+13
Oct 08, 20261480
Oct 07, 2026148+10
Oct 06, 2026138+6
Oct 05, 20261320
Oct 02, 2026132No prior observation