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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $125.00 Put

MRK270115P00125000

Latest saved OI2,777Oct 23, 2026
Last change+25vs 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. 2,7771,3880 2026-10-02: 2,676 OI2026-10-05: 2,676 OI2026-10-06: 2,638 OI2026-10-07: 2,625 OI2026-10-08: 2,625 OI2026-10-09: 2,643 OI2026-10-13: 2,694 OI2026-10-14: 2,694 OI2026-10-15: 2,689 OI2026-10-16: 2,700 OI2026-10-21: 2,752 OI2026-10-23: 2,777 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, 2026Viewing2,777+25
Oct 21, 20262,752+52
Oct 16, 20262,700+11
Oct 15, 20262,689-5
Oct 14, 20262,6940
Oct 13, 20262,694+51
Oct 09, 20262,643+18
Oct 08, 20262,6250
Oct 07, 20262,625-13
Oct 06, 20262,638-38
Oct 05, 20262,6760
Oct 02, 20262,676No prior observation