OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

CB $290.00 Put

CB270617P00290000

Latest saved OI42Oct 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
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. 42210 2026-10-02: 41 OI2026-10-05: 41 OI2026-10-06: 41 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 41 OI2026-10-13: 41 OI2026-10-14: 41 OI2026-10-15: 41 OI2026-10-16: 41 OI2026-10-21: 41 OI2026-10-23: 42 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, 2026Viewing42+1
Oct 21, 2026410
Oct 16, 2026410
Oct 15, 2026410
Oct 14, 2026410
Oct 13, 2026410
Oct 09, 2026410
Oct 08, 2026410
Oct 07, 2026410
Oct 06, 2026410
Oct 05, 2026410
Oct 02, 202641No prior observation