OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

U $42.50 Put

U261023P00042500

Latest saved OI59Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 05, 2026 onwards
Daily open interest Hover a point for its date and OI
U $42.50 put open interest history 10 saved observations from 2026-10-05 to 2026-10-23. Exact values and changes are listed in the table below. 59290 2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 3 OI2026-10-08: 3 OI2026-10-09: 3 OI2026-10-14: 27 OI2026-10-15: 36 OI2026-10-16: 39 OI2026-10-21: 59 OI2026-10-23: 59 OI Oct 05, 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, 2026590
Oct 21, 2026Viewing59+20
Oct 16, 202639+3
Oct 15, 202636+9
Oct 14, 202627+24
Oct 09, 202630
Oct 08, 202630
Oct 07, 20263+3
Oct 06, 202600
Oct 05, 20260No prior observation