OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

U $28.00 Put

U280121P00028000

Latest saved OI740Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $28.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7403700 2026-10-02: 740 OI2026-10-05: 740 OI2026-10-06: 740 OI2026-10-07: 740 OI2026-10-08: 740 OI2026-10-09: 740 OI2026-10-14: 740 OI2026-10-15: 740 OI2026-10-16: 740 OI2026-10-21: 740 OI2026-10-23: 740 OI Oct 02, 2026Oct 23, 2026

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

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7400
Oct 21, 20267400
Oct 16, 20267400
Oct 15, 20267400
Oct 14, 20267400
Oct 09, 20267400
Oct 08, 20267400
Oct 07, 20267400
Oct 06, 20267400
Oct 05, 20267400
Oct 02, 2026740No prior observation