OITracker Cboe delayed data

Contract OI history

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Dec 15, 2028 EXPIRATION

U $25.00 Put

U281215P00025000

Latest saved OI11Oct 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 $25.00 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. 1150 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 5 OI2026-10-07: 5 OI2026-10-08: 5 OI2026-10-09: 5 OI2026-10-14: 11 OI2026-10-15: 11 OI2026-10-16: 11 OI2026-10-21: 11 OI2026-10-23: 11 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, 2026110
Oct 21, 2026Viewing110
Oct 16, 2026110
Oct 15, 2026110
Oct 14, 202611+6
Oct 09, 202650
Oct 08, 202650
Oct 07, 202650
Oct 06, 20265+4
Oct 05, 202610
Oct 02, 20261No prior observation