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Contract OI history

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Dec 18, 2026 EXPIRATION

DELL $400.00 Put

DELL261218P00400000

Latest saved OI1,665Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DELL $400.00 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. 1,6658320 2026-10-02: 1,192 OI2026-10-05: 1,171 OI2026-10-06: 1,169 OI2026-10-07: 1,162 OI2026-10-08: 1,162 OI2026-10-09: 1,180 OI2026-10-13: 1,181 OI2026-10-14: 1,181 OI2026-10-15: 1,369 OI2026-10-16: 1,509 OI2026-10-21: 1,652 OI2026-10-23: 1,665 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, 2026Viewing1,665+13
Oct 21, 20261,652+143
Oct 16, 20261,509+140
Oct 15, 20261,369+188
Oct 14, 20261,1810
Oct 13, 20261,181+1
Oct 09, 20261,180+18
Oct 08, 20261,1620
Oct 07, 20261,162-7
Oct 06, 20261,169-2
Oct 05, 20261,171-21
Oct 02, 20261,192No prior observation