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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $110.00 Put

MRK261218P00110000

Latest saved OI2,743Oct 23, 2026
Last change-12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $110.00 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. 2,7741,3870 2026-10-02: 2,714 OI2026-10-05: 2,716 OI2026-10-06: 2,712 OI2026-10-07: 2,712 OI2026-10-08: 2,712 OI2026-10-09: 2,672 OI2026-10-13: 2,747 OI2026-10-14: 2,747 OI2026-10-15: 2,774 OI2026-10-16: 2,754 OI2026-10-21: 2,755 OI2026-10-23: 2,743 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, 2026Viewing2,743-12
Oct 21, 20262,755+1
Oct 16, 20262,754-20
Oct 15, 20262,774+27
Oct 14, 20262,7470
Oct 13, 20262,747+75
Oct 09, 20262,672-40
Oct 08, 20262,7120
Oct 07, 20262,7120
Oct 06, 20262,712-4
Oct 05, 20262,716+2
Oct 02, 20262,714No prior observation