OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $110.00 Call

MRK270115C00110000

Latest saved OI1,997Oct 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 $110.00 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. 2,0321,0160 2026-10-02: 2,032 OI2026-10-05: 2,032 OI2026-10-06: 2,008 OI2026-10-07: 2,004 OI2026-10-08: 2,004 OI2026-10-09: 2,000 OI2026-10-13: 2,000 OI2026-10-14: 2,000 OI2026-10-15: 2,000 OI2026-10-16: 1,997 OI2026-10-21: 1,997 OI2026-10-23: 1,997 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, 2026Viewing1,9970
Oct 21, 20261,9970
Oct 16, 20261,997-3
Oct 15, 20262,0000
Oct 14, 20262,0000
Oct 13, 20262,0000
Oct 09, 20262,000-4
Oct 08, 20262,0040
Oct 07, 20262,004-4
Oct 06, 20262,008-24
Oct 05, 20262,0320
Oct 02, 20262,032No prior observation