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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $100.00 Call

MRK261218C00100000

Latest saved OI628Oct 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 $100.00 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. 7243620 2026-10-02: 724 OI2026-10-05: 724 OI2026-10-06: 630 OI2026-10-07: 629 OI2026-10-08: 629 OI2026-10-09: 629 OI2026-10-13: 628 OI2026-10-14: 628 OI2026-10-15: 628 OI2026-10-16: 628 OI2026-10-21: 628 OI2026-10-23: 628 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, 2026Viewing6280
Oct 21, 20266280
Oct 16, 20266280
Oct 15, 20266280
Oct 14, 20266280
Oct 13, 2026628-1
Oct 09, 20266290
Oct 08, 20266290
Oct 07, 2026629-1
Oct 06, 2026630-94
Oct 05, 20267240
Oct 02, 2026724No prior observation