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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $148.00 Call

MRK261023C00148000

Latest saved OI364Oct 23, 2026
Last change-208vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $148.00 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. 5722860 2026-10-02: 11 OI2026-10-05: 11 OI2026-10-06: 11 OI2026-10-07: 11 OI2026-10-08: 11 OI2026-10-09: 58 OI2026-10-13: 77 OI2026-10-14: 77 OI2026-10-15: 91 OI2026-10-16: 84 OI2026-10-21: 572 OI2026-10-23: 364 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, 2026Viewing364-208
Oct 21, 2026572+488
Oct 16, 202684-7
Oct 15, 202691+14
Oct 14, 2026770
Oct 13, 202677+19
Oct 09, 202658+47
Oct 08, 2026110
Oct 07, 2026110
Oct 06, 2026110
Oct 05, 2026110
Oct 02, 202611No prior observation