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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $90.00 Call

MRK261218C00090000

Latest saved OI231Oct 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 $90.00 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. 2611300 2026-10-02: 261 OI2026-10-05: 261 OI2026-10-06: 232 OI2026-10-07: 232 OI2026-10-08: 232 OI2026-10-09: 232 OI2026-10-13: 232 OI2026-10-14: 232 OI2026-10-15: 232 OI2026-10-16: 232 OI2026-10-21: 231 OI2026-10-23: 231 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, 2026Viewing2310
Oct 21, 2026231-1
Oct 16, 20262320
Oct 15, 20262320
Oct 14, 20262320
Oct 13, 20262320
Oct 09, 20262320
Oct 08, 20262320
Oct 07, 20262320
Oct 06, 2026232-29
Oct 05, 20262610
Oct 02, 2026261No prior observation