OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

CMS $65.00 Put

CMS261120P00065000

Latest saved OI121Oct 23, 2026
Last change+39vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMS $65.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 121600 2026-10-02: 11 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 19 OI2026-10-08: 19 OI2026-10-09: 19 OI2026-10-13: 27 OI2026-10-14: 27 OI2026-10-15: 44 OI2026-10-16: 44 OI2026-10-21: 82 OI2026-10-23: 121 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, 2026Viewing121+39
Oct 21, 202682+38
Oct 16, 2026440
Oct 15, 202644+17
Oct 14, 2026270
Oct 13, 202627+8
Oct 09, 2026190
Oct 08, 2026190
Oct 07, 202619+1
Oct 06, 2026180
Oct 05, 202618+7
Oct 02, 202611No prior observation