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Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $170.00 Call

MRK261120C00170000

Latest saved OI2,240Oct 23, 2026
Last change-112vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $170.00 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. 2,3521,1760 2026-10-02: 2,148 OI2026-10-05: 2,143 OI2026-10-06: 2,127 OI2026-10-07: 2,115 OI2026-10-08: 2,115 OI2026-10-09: 2,115 OI2026-10-13: 2,129 OI2026-10-14: 2,129 OI2026-10-15: 2,126 OI2026-10-16: 2,118 OI2026-10-21: 2,352 OI2026-10-23: 2,240 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, 2026Viewing2,240-112
Oct 21, 20262,352+234
Oct 16, 20262,118-8
Oct 15, 20262,126-3
Oct 14, 20262,1290
Oct 13, 20262,129+14
Oct 09, 20262,1150
Oct 08, 20262,1150
Oct 07, 20262,115-12
Oct 06, 20262,127-16
Oct 05, 20262,143-5
Oct 02, 20262,148No prior observation