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Contract OI history

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Dec 17, 2027 EXPIRATION

MRK $195.00 Call

MRK271217C00195000

Latest saved OI392Oct 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 $195.00 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. 3921960 2026-10-02: 389 OI2026-10-05: 389 OI2026-10-06: 392 OI2026-10-07: 392 OI2026-10-08: 392 OI2026-10-09: 392 OI2026-10-13: 392 OI2026-10-14: 392 OI2026-10-15: 392 OI2026-10-16: 392 OI2026-10-21: 392 OI2026-10-23: 392 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, 2026Viewing3920
Oct 21, 20263920
Oct 16, 20263920
Oct 15, 20263920
Oct 14, 20263920
Oct 13, 20263920
Oct 09, 20263920
Oct 08, 20263920
Oct 07, 20263920
Oct 06, 2026392+3
Oct 05, 20263890
Oct 02, 2026389No prior observation