OITracker Cboe delayed data

Contract OI history

Back to WDC

Oct 23, 2026 EXPIRATION

WDC $320.00 Put

WDC261023P00320000

Latest saved OI868Oct 23, 2026
Last change+449vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $320.00 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. 8684340 2026-10-09: 203 OI2026-10-12: 209 OI2026-10-14: 356 OI2026-10-15: 377 OI2026-10-16: 399 OI2026-10-21: 419 OI2026-10-23: 868 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, 2026Viewing868+449
Oct 21, 2026419+20
Oct 16, 2026399+22
Oct 15, 2026377+21
Oct 14, 2026356+147
Oct 12, 2026209+6
Oct 09, 2026203No prior observation