OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CMS $65.00 Put

CMS261218P00065000

Latest saved OI251Oct 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 $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. 2591290 2026-10-02: 259 OI2026-10-05: 259 OI2026-10-06: 259 OI2026-10-07: 259 OI2026-10-08: 259 OI2026-10-09: 259 OI2026-10-13: 258 OI2026-10-14: 258 OI2026-10-15: 258 OI2026-10-16: 259 OI2026-10-21: 251 OI2026-10-23: 251 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, 2026Viewing2510
Oct 21, 2026251-8
Oct 16, 2026259+1
Oct 15, 20262580
Oct 14, 20262580
Oct 13, 2026258-1
Oct 09, 20262590
Oct 08, 20262590
Oct 07, 20262590
Oct 06, 20262590
Oct 05, 20262590
Oct 02, 2026259No prior observation