OITracker Cboe delayed data

Contract OI history

Back to WDC

Dec 18, 2026 EXPIRATION

WDC $330.00 Put

WDC261218P00330000

Latest saved OI448Oct 23, 2026
Last change-4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $330.00 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. 4522260 2026-10-09: 335 OI2026-10-12: 349 OI2026-10-14: 361 OI2026-10-15: 375 OI2026-10-16: 382 OI2026-10-21: 452 OI2026-10-23: 448 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, 2026Viewing448-4
Oct 21, 2026452+70
Oct 16, 2026382+7
Oct 15, 2026375+14
Oct 14, 2026361+12
Oct 12, 2026349+14
Oct 09, 2026335No prior observation