OITracker Cboe delayed data

Contract OI history

Back to WDC

Oct 30, 2026 EXPIRATION

WDC $500.00 Put

WDC261030P00500000

Latest saved OI30Oct 23, 2026
Last change-15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $500.00 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. 45220 2026-10-09: 42 OI2026-10-12: 42 OI2026-10-14: 45 OI2026-10-15: 45 OI2026-10-16: 45 OI2026-10-21: 45 OI2026-10-23: 30 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, 2026Viewing30-15
Oct 21, 2026450
Oct 16, 2026450
Oct 15, 2026450
Oct 14, 202645+3
Oct 12, 2026420
Oct 09, 202642No prior observation