OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CB $290.00 Put

CB270115P00290000

Latest saved OI693Oct 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. 7013500 2026-10-02: 701 OI2026-10-05: 701 OI2026-10-06: 700 OI2026-10-07: 700 OI2026-10-08: 699 OI2026-10-09: 699 OI2026-10-13: 699 OI2026-10-14: 699 OI2026-10-15: 698 OI2026-10-16: 698 OI2026-10-21: 693 OI2026-10-23: 693 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, 2026Viewing6930
Oct 21, 2026693-5
Oct 16, 20266980
Oct 15, 2026698-1
Oct 14, 20266990
Oct 13, 20266990
Oct 09, 20266990
Oct 08, 2026699-1
Oct 07, 20267000
Oct 06, 2026700-1
Oct 05, 20267010
Oct 02, 2026701No prior observation