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Contract OI history

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Sep 17, 2027 EXPIRATION

MRK $135.00 Put

MRK270917P00135000

Latest saved OI663Oct 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 $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. 6633310 2026-10-02: 56 OI2026-10-05: 56 OI2026-10-06: 60 OI2026-10-07: 60 OI2026-10-08: 60 OI2026-10-09: 61 OI2026-10-13: 61 OI2026-10-14: 61 OI2026-10-15: 61 OI2026-10-16: 61 OI2026-10-21: 663 OI2026-10-23: 663 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, 2026Viewing6630
Oct 21, 2026663+602
Oct 16, 2026610
Oct 15, 2026610
Oct 14, 2026610
Oct 13, 2026610
Oct 09, 202661+1
Oct 08, 2026600
Oct 07, 2026600
Oct 06, 202660+4
Oct 05, 2026560
Oct 02, 202656No prior observation