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Contract OI history

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Dec 18, 2026 EXPIRATION

DELL $440.00 Put

DELL261218P00440000

Latest saved OI646Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DELL $440.00 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. 6513250 2026-10-02: 603 OI2026-10-05: 602 OI2026-10-06: 602 OI2026-10-07: 608 OI2026-10-08: 608 OI2026-10-09: 638 OI2026-10-13: 632 OI2026-10-14: 632 OI2026-10-15: 651 OI2026-10-16: 649 OI2026-10-21: 636 OI2026-10-23: 646 OI Oct 02, 2026Oct 23, 2026

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

DELL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing646+10
Oct 21, 2026636-13
Oct 16, 2026649-2
Oct 15, 2026651+19
Oct 14, 20266320
Oct 13, 2026632-6
Oct 09, 2026638+30
Oct 08, 20266080
Oct 07, 2026608+6
Oct 06, 20266020
Oct 05, 2026602-1
Oct 02, 2026603No prior observation