OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ULCC $4.00 Put

ULCC270115P00004000

Latest saved OI1,588Oct 23, 2026
Last change+1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ULCC $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,6978480 2026-10-09: 1,697 OI2026-10-13: 1,697 OI2026-10-14: 1,586 OI2026-10-16: 1,586 OI2026-10-20: 1,587 OI2026-10-23: 1,588 OI Oct 09, 2026Oct 23, 2026

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

ULCC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,588+1
Oct 20, 2026Viewing1,587+1
Oct 16, 20261,5860
Oct 14, 20261,586-111
Oct 13, 20261,6970
Oct 09, 20261,697No prior observation