OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

CB $290.00 Put

CB261120P00290000

Latest saved OI232Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $290.00 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. 2321160 2026-10-02: 212 OI2026-10-05: 212 OI2026-10-06: 212 OI2026-10-07: 212 OI2026-10-08: 212 OI2026-10-09: 212 OI2026-10-13: 212 OI2026-10-14: 212 OI2026-10-15: 212 OI2026-10-16: 212 OI2026-10-21: 232 OI2026-10-23: 232 OI Oct 02, 2026Oct 23, 2026

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

CB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2320
Oct 21, 2026232+20
Oct 16, 20262120
Oct 15, 20262120
Oct 14, 20262120
Oct 13, 20262120
Oct 09, 20262120
Oct 08, 20262120
Oct 07, 20262120
Oct 06, 20262120
Oct 05, 20262120
Oct 02, 2026212No prior observation