OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CMS $75.00 Call

CMS261218C00075000

Latest saved OI370Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMS $75.00 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. 3701850 2026-10-02: 367 OI2026-10-05: 367 OI2026-10-06: 367 OI2026-10-07: 370 OI2026-10-08: 370 OI2026-10-09: 370 OI2026-10-13: 370 OI2026-10-14: 370 OI2026-10-15: 370 OI2026-10-16: 370 OI2026-10-21: 370 OI2026-10-23: 370 OI Oct 02, 2026Oct 23, 2026

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

CMS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3700
Oct 21, 20263700
Oct 16, 20263700
Oct 15, 20263700
Oct 14, 20263700
Oct 13, 20263700
Oct 09, 20263700
Oct 08, 20263700
Oct 07, 2026370+3
Oct 06, 20263670
Oct 05, 20263670
Oct 02, 2026367No prior observation