OITracker Cboe delayed data

Contract OI history

Back to MCK

Dec 18, 2026 EXPIRATION

MCK $1100.00 Call

MCK261218C01100000

Latest saved OI267Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MCK $1100.00 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. 2671330 2026-10-02: 167 OI2026-10-05: 167 OI2026-10-06: 167 OI2026-10-07: 167 OI2026-10-08: 167 OI2026-10-09: 167 OI2026-10-13: 167 OI2026-10-14: 167 OI2026-10-15: 264 OI2026-10-16: 264 OI2026-10-21: 265 OI2026-10-23: 267 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MCK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing267+2
Oct 21, 2026265+1
Oct 16, 20262640
Oct 15, 2026264+97
Oct 14, 20261670
Oct 13, 20261670
Oct 09, 20261670
Oct 08, 20261670
Oct 07, 20261670
Oct 06, 20261670
Oct 05, 20261670
Oct 02, 2026167No prior observation