OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

U $20.00 Put

U270115P00020000

Latest saved OI18,490Oct 23, 2026
Last change+88vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $20.00 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. 18,4909,2450 2026-10-02: 18,402 OI2026-10-05: 18,402 OI2026-10-06: 18,402 OI2026-10-07: 18,402 OI2026-10-08: 18,402 OI2026-10-09: 18,402 OI2026-10-14: 18,402 OI2026-10-15: 18,402 OI2026-10-16: 18,402 OI2026-10-21: 18,402 OI2026-10-23: 18,490 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, 202618,490+88
Oct 21, 2026Viewing18,4020
Oct 16, 202618,4020
Oct 15, 202618,4020
Oct 14, 202618,4020
Oct 09, 202618,4020
Oct 08, 202618,4020
Oct 07, 202618,4020
Oct 06, 202618,4020
Oct 05, 202618,4020
Oct 02, 202618,402No prior observation