OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

OPEN $5.00 Put

OPEN1280121P00005000

Latest saved OI774Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $5.00 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. 7913950 2026-10-09: 791 OI2026-10-13: 791 OI2026-10-14: 791 OI2026-10-15: 791 OI2026-10-16: 777 OI2026-10-21: 775 OI2026-10-23: 774 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, 2026Viewing774-1
Oct 21, 2026775-2
Oct 16, 2026777-14
Oct 15, 20267910
Oct 14, 20267910
Oct 13, 20267910
Oct 09, 2026791No prior observation