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Contract OI history

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Jan 21, 2028 EXPIRATION

MRK $105.00 Put

MRK280121P00105000

Latest saved OI574Oct 23, 2026
Last change0vs 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. 5762880 2026-10-02: 576 OI2026-10-05: 576 OI2026-10-06: 576 OI2026-10-07: 576 OI2026-10-08: 576 OI2026-10-09: 576 OI2026-10-13: 576 OI2026-10-14: 576 OI2026-10-15: 576 OI2026-10-16: 575 OI2026-10-21: 574 OI2026-10-23: 574 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, 2026Viewing5740
Oct 21, 2026574-1
Oct 16, 2026575-1
Oct 15, 20265760
Oct 14, 20265760
Oct 13, 20265760
Oct 09, 20265760
Oct 08, 20265760
Oct 07, 20265760
Oct 06, 20265760
Oct 05, 20265760
Oct 02, 2026576No prior observation