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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $105.00 Put

MRK261218P00105000

Latest saved OI2,047Oct 23, 2026
Last change-33vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $105.00 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. 2,4671,2330 2026-10-02: 2,467 OI2026-10-05: 2,442 OI2026-10-06: 2,244 OI2026-10-07: 2,212 OI2026-10-08: 2,212 OI2026-10-09: 2,212 OI2026-10-13: 2,189 OI2026-10-14: 2,189 OI2026-10-15: 2,162 OI2026-10-16: 2,137 OI2026-10-21: 2,080 OI2026-10-23: 2,047 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, 2026Viewing2,047-33
Oct 21, 20262,080-57
Oct 16, 20262,137-25
Oct 15, 20262,162-27
Oct 14, 20262,1890
Oct 13, 20262,189-23
Oct 09, 20262,2120
Oct 08, 20262,2120
Oct 07, 20262,212-32
Oct 06, 20262,244-198
Oct 05, 20262,442-25
Oct 02, 20262,467No prior observation