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Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $135.00 Put

MRK270617P00135000

Latest saved OI1,609Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $135.00 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. 1,6178080 2026-10-02: 1,254 OI2026-10-05: 1,254 OI2026-10-06: 1,255 OI2026-10-07: 1,255 OI2026-10-08: 1,255 OI2026-10-09: 1,269 OI2026-10-13: 1,267 OI2026-10-14: 1,267 OI2026-10-15: 1,617 OI2026-10-16: 1,617 OI2026-10-21: 1,608 OI2026-10-23: 1,609 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, 2026Viewing1,609+1
Oct 21, 20261,608-9
Oct 16, 20261,6170
Oct 15, 20261,617+350
Oct 14, 20261,2670
Oct 13, 20261,267-2
Oct 09, 20261,269+14
Oct 08, 20261,2550
Oct 07, 20261,2550
Oct 06, 20261,255+1
Oct 05, 20261,2540
Oct 02, 20261,254No prior observation