OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $290.00 Put

WDC261120P00290000

Latest saved OI4,388Oct 23, 2026
Last change-46vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $290.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,4342,2170 2026-10-09: 4,313 OI2026-10-12: 4,377 OI2026-10-14: 4,408 OI2026-10-15: 4,406 OI2026-10-16: 4,382 OI2026-10-21: 4,434 OI2026-10-23: 4,388 OI Oct 09, 2026Oct 23, 2026

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

WDC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,388-46
Oct 21, 20264,434+52
Oct 16, 20264,382-24
Oct 15, 20264,406-2
Oct 14, 20264,408+31
Oct 12, 20264,377+64
Oct 09, 20264,313No prior observation