OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

CPB $20.00 Call

CPB270319C00020000

Latest saved OI575Oct 23, 2026
Last change-63vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CPB $20.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6593290 2026-10-09: 640 OI2026-10-13: 659 OI2026-10-14: 645 OI2026-10-15: 645 OI2026-10-16: 637 OI2026-10-21: 638 OI2026-10-23: 575 OI Oct 09, 2026Oct 23, 2026

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

CPB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing575-63
Oct 21, 2026638+1
Oct 16, 2026637-8
Oct 15, 20266450
Oct 14, 2026645-14
Oct 13, 2026659+19
Oct 09, 2026640No prior observation