OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

U $22.00 Put

U270521P00022000

Latest saved OI72Oct 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 $22.00 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. 75370 2026-10-02: 60 OI2026-10-05: 60 OI2026-10-06: 75 OI2026-10-07: 75 OI2026-10-08: 75 OI2026-10-09: 75 OI2026-10-14: 75 OI2026-10-15: 72 OI2026-10-16: 72 OI2026-10-21: 72 OI2026-10-23: 72 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, 2026Viewing720
Oct 21, 2026720
Oct 16, 2026720
Oct 15, 202672-3
Oct 14, 2026750
Oct 09, 2026750
Oct 08, 2026750
Oct 07, 2026750
Oct 06, 202675+15
Oct 05, 2026600
Oct 02, 202660No prior observation