OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

OPEN $2.50 Put

OPEN261023P00002500

Latest saved OI454Oct 23, 2026
Last change-196vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $2.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6673330 2026-10-09: 627 OI2026-10-13: 667 OI2026-10-14: 667 OI2026-10-15: 637 OI2026-10-16: 631 OI2026-10-21: 650 OI2026-10-23: 454 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing454-196
Oct 21, 2026650+19
Oct 16, 2026631-6
Oct 15, 2026637-30
Oct 14, 20266670
Oct 13, 2026667+40
Oct 09, 2026627No prior observation