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Contract OI history

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Oct 30, 2026 EXPIRATION

MRK $150.00 Call

MRK261030C00150000

Latest saved OI2,210Oct 23, 2026
Last change+1,572vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $150.00 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. 2,2101,1050 2026-10-02: 186 OI2026-10-05: 187 OI2026-10-06: 232 OI2026-10-07: 231 OI2026-10-08: 231 OI2026-10-09: 266 OI2026-10-13: 236 OI2026-10-14: 236 OI2026-10-15: 257 OI2026-10-16: 437 OI2026-10-21: 638 OI2026-10-23: 2,210 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, 2026Viewing2,210+1,572
Oct 21, 2026638+201
Oct 16, 2026437+180
Oct 15, 2026257+21
Oct 14, 20262360
Oct 13, 2026236-30
Oct 09, 2026266+35
Oct 08, 20262310
Oct 07, 2026231-1
Oct 06, 2026232+45
Oct 05, 2026187+1
Oct 02, 2026186No prior observation