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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $160.00 Call

MRK261218C00160000

Latest saved OI1,986Oct 23, 2026
Last change+73vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $160.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,9869930 2026-10-02: 1,665 OI2026-10-05: 1,666 OI2026-10-06: 1,667 OI2026-10-07: 1,664 OI2026-10-08: 1,664 OI2026-10-09: 1,783 OI2026-10-13: 1,782 OI2026-10-14: 1,782 OI2026-10-15: 1,823 OI2026-10-16: 1,843 OI2026-10-21: 1,913 OI2026-10-23: 1,986 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, 2026Viewing1,986+73
Oct 21, 20261,913+70
Oct 16, 20261,843+20
Oct 15, 20261,823+41
Oct 14, 20261,7820
Oct 13, 20261,782-1
Oct 09, 20261,783+119
Oct 08, 20261,6640
Oct 07, 20261,664-3
Oct 06, 20261,667+1
Oct 05, 20261,666+1
Oct 02, 20261,665No prior observation