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Contract OI history

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Jan 21, 2028 EXPIRATION

DAL $40.00 Put

DAL280121P00040000

Latest saved OI1,724Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DAL $40.00 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. 1,7248620 2026-10-02: 1,704 OI2026-10-05: 1,706 OI2026-10-06: 1,706 OI2026-10-07: 1,706 OI2026-10-08: 1,706 OI2026-10-09: 1,706 OI2026-10-13: 1,724 OI2026-10-14: 1,724 OI2026-10-15: 1,724 OI2026-10-16: 1,724 OI2026-10-21: 1,724 OI2026-10-23: 1,724 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, 2026Viewing1,7240
Oct 21, 20261,7240
Oct 16, 20261,7240
Oct 15, 20261,7240
Oct 14, 20261,7240
Oct 13, 20261,724+18
Oct 09, 20261,7060
Oct 08, 20261,7060
Oct 07, 20261,7060
Oct 06, 20261,7060
Oct 05, 20261,706+2
Oct 02, 20261,704No prior observation