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Contract OI history

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Jan 21, 2028 EXPIRATION

DAL $77.50 Put

DAL280121P00077500

Latest saved OI638Oct 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 $77.50 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. 6393190 2026-10-02: 608 OI2026-10-05: 615 OI2026-10-06: 627 OI2026-10-07: 633 OI2026-10-08: 633 OI2026-10-09: 637 OI2026-10-13: 638 OI2026-10-14: 638 OI2026-10-15: 638 OI2026-10-16: 639 OI2026-10-21: 639 OI2026-10-23: 638 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, 2026Viewing638-1
Oct 21, 20266390
Oct 16, 2026639+1
Oct 15, 20266380
Oct 14, 20266380
Oct 13, 2026638+1
Oct 09, 2026637+4
Oct 08, 20266330
Oct 07, 2026633+6
Oct 06, 2026627+12
Oct 05, 2026615+7
Oct 02, 2026608No prior observation