OITracker Cboe delayed data

Contract OI history

Back to WDC

Oct 30, 2026 EXPIRATION

WDC $380.00 Put

WDC261030P00380000

Latest saved OI536Oct 23, 2026
Last change+31vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $380.00 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. 5362680 2026-10-09: 494 OI2026-10-12: 521 OI2026-10-14: 514 OI2026-10-15: 506 OI2026-10-16: 525 OI2026-10-21: 505 OI2026-10-23: 536 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, 2026Viewing536+31
Oct 21, 2026505-20
Oct 16, 2026525+19
Oct 15, 2026506-8
Oct 14, 2026514-7
Oct 12, 2026521+27
Oct 09, 2026494No prior observation