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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $146.00 Call

MRK261023C00146000

Latest saved OI1,967Oct 23, 2026
Last change-258vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $146.00 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. 2,2251,1120 2026-10-02: 419 OI2026-10-05: 419 OI2026-10-06: 463 OI2026-10-07: 466 OI2026-10-08: 466 OI2026-10-09: 505 OI2026-10-13: 511 OI2026-10-14: 511 OI2026-10-15: 1,944 OI2026-10-16: 1,975 OI2026-10-21: 2,225 OI2026-10-23: 1,967 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, 2026Viewing1,967-258
Oct 21, 20262,225+250
Oct 16, 20261,975+31
Oct 15, 20261,944+1,433
Oct 14, 20265110
Oct 13, 2026511+6
Oct 09, 2026505+39
Oct 08, 20264660
Oct 07, 2026466+3
Oct 06, 2026463+44
Oct 05, 20264190
Oct 02, 2026419No prior observation