OITracker Cboe delayed data

Contract OI history

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Sep 17, 2027 EXPIRATION

DELL $400.00 Put

DELL270917P00400000

Latest saved OI387Oct 23, 2026
Last change-2vs 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. 4502250 2026-10-02: 449 OI2026-10-05: 450 OI2026-10-06: 385 OI2026-10-07: 385 OI2026-10-08: 385 OI2026-10-09: 384 OI2026-10-13: 385 OI2026-10-14: 385 OI2026-10-15: 391 OI2026-10-16: 391 OI2026-10-21: 389 OI2026-10-23: 387 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, 2026Viewing387-2
Oct 21, 2026389-2
Oct 16, 20263910
Oct 15, 2026391+6
Oct 14, 20263850
Oct 13, 2026385+1
Oct 09, 2026384-1
Oct 08, 20263850
Oct 07, 20263850
Oct 06, 2026385-65
Oct 05, 2026450+1
Oct 02, 2026449No prior observation