OITracker Cboe delayed data

Contract OI history

Back to WDC

Oct 23, 2026 EXPIRATION

WDC $395.00 Put

WDC261023P00395000

Latest saved OI389Oct 23, 2026
Last change-38vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $395.00 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. 5402700 2026-10-09: 275 OI2026-10-12: 389 OI2026-10-14: 381 OI2026-10-15: 365 OI2026-10-16: 540 OI2026-10-21: 427 OI2026-10-23: 389 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, 2026Viewing389-38
Oct 21, 2026427-113
Oct 16, 2026540+175
Oct 15, 2026365-16
Oct 14, 2026381-8
Oct 12, 2026389+114
Oct 09, 2026275No prior observation