OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CMS $70.00 Call

CMS261218C00070000

Latest saved OI1,084Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMS $70.00 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. 1,0855420 2026-10-02: 540 OI2026-10-05: 541 OI2026-10-06: 546 OI2026-10-07: 552 OI2026-10-08: 567 OI2026-10-09: 565 OI2026-10-13: 560 OI2026-10-14: 560 OI2026-10-15: 556 OI2026-10-16: 549 OI2026-10-21: 1,085 OI2026-10-23: 1,084 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, 2026Viewing1,084-1
Oct 21, 20261,085+536
Oct 16, 2026549-7
Oct 15, 2026556-4
Oct 14, 20265600
Oct 13, 2026560-5
Oct 09, 2026565-2
Oct 08, 2026567+15
Oct 07, 2026552+6
Oct 06, 2026546+5
Oct 05, 2026541+1
Oct 02, 2026540No prior observation