OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

DAL $55.00 Put

DAL280121P00055000

Latest saved OI739Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DAL $55.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7583790 2026-10-02: 753 OI2026-10-05: 753 OI2026-10-06: 753 OI2026-10-07: 753 OI2026-10-08: 753 OI2026-10-09: 758 OI2026-10-13: 758 OI2026-10-14: 758 OI2026-10-15: 758 OI2026-10-16: 758 OI2026-10-21: 740 OI2026-10-23: 739 OI Oct 02, 2026Oct 23, 2026

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

DAL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing739-1
Oct 21, 2026740-18
Oct 16, 20267580
Oct 15, 20267580
Oct 14, 20267580
Oct 13, 20267580
Oct 09, 2026758+5
Oct 08, 20267530
Oct 07, 20267530
Oct 06, 20267530
Oct 05, 20267530
Oct 02, 2026753No prior observation