OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

DELL $320.00 Put

DELL270319P00320000

Latest saved OI421Oct 23, 2026
Last change-25vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DELL $320.00 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. 4462230 2026-10-02: 232 OI2026-10-05: 232 OI2026-10-06: 233 OI2026-10-07: 235 OI2026-10-08: 235 OI2026-10-09: 235 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 236 OI2026-10-16: 437 OI2026-10-21: 446 OI2026-10-23: 421 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, 2026Viewing421-25
Oct 21, 2026446+9
Oct 16, 2026437+201
Oct 15, 2026236+1
Oct 14, 20262350
Oct 13, 20262350
Oct 09, 20262350
Oct 08, 20262350
Oct 07, 2026235+2
Oct 06, 2026233+1
Oct 05, 20262320
Oct 02, 2026232No prior observation