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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $70.00 Put

MRK261218P00070000

Latest saved OI1,027Oct 23, 2026
Last change-80vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $70.00 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. 1,1095540 2026-10-02: 1,079 OI2026-10-05: 1,079 OI2026-10-06: 1,079 OI2026-10-07: 1,079 OI2026-10-08: 1,079 OI2026-10-09: 1,109 OI2026-10-13: 1,109 OI2026-10-14: 1,109 OI2026-10-15: 1,109 OI2026-10-16: 1,109 OI2026-10-21: 1,107 OI2026-10-23: 1,027 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, 2026Viewing1,027-80
Oct 21, 20261,107-2
Oct 16, 20261,1090
Oct 15, 20261,1090
Oct 14, 20261,1090
Oct 13, 20261,1090
Oct 09, 20261,109+30
Oct 08, 20261,0790
Oct 07, 20261,0790
Oct 06, 20261,0790
Oct 05, 20261,0790
Oct 02, 20261,079No prior observation