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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $140.00 Put

MRK270115P00140000

Latest saved OI3,538Oct 23, 2026
Last change+48vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $140.00 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. 3,6801,8400 2026-10-02: 3,611 OI2026-10-05: 3,611 OI2026-10-06: 3,629 OI2026-10-07: 3,630 OI2026-10-08: 3,630 OI2026-10-09: 3,680 OI2026-10-13: 3,679 OI2026-10-14: 3,679 OI2026-10-15: 3,418 OI2026-10-16: 3,419 OI2026-10-21: 3,490 OI2026-10-23: 3,538 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, 2026Viewing3,538+48
Oct 21, 20263,490+71
Oct 16, 20263,419+1
Oct 15, 20263,418-261
Oct 14, 20263,6790
Oct 13, 20263,679-1
Oct 09, 20263,680+50
Oct 08, 20263,6300
Oct 07, 20263,630+1
Oct 06, 20263,629+18
Oct 05, 20263,6110
Oct 02, 20263,611No prior observation