OITracker Cboe delayed data

Contract OI history

Back to CI

Jan 15, 2027 EXPIRATION

CI $230.00 Put

CI270115P00230000

Latest saved OI324Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $230.00 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. 3241620 2026-10-02: 303 OI2026-10-05: 303 OI2026-10-06: 303 OI2026-10-07: 300 OI2026-10-08: 300 OI2026-10-09: 300 OI2026-10-13: 300 OI2026-10-14: 302 OI2026-10-15: 302 OI2026-10-16: 301 OI2026-10-21: 324 OI2026-10-23: 324 OI Oct 02, 2026Oct 23, 2026

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

CI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3240
Oct 21, 2026324+23
Oct 16, 2026301-1
Oct 15, 20263020
Oct 14, 2026302+2
Oct 13, 20263000
Oct 09, 20263000
Oct 08, 20263000
Oct 07, 2026300-3
Oct 06, 20263030
Oct 05, 20263030
Oct 02, 2026303No prior observation