OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $400.00 Call

WDC261218C00400000

Latest saved OI1,279Oct 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 $400.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,3116550 2026-10-09: 475 OI2026-10-12: 489 OI2026-10-14: 1,311 OI2026-10-15: 1,296 OI2026-10-16: 1,304 OI2026-10-21: 1,310 OI2026-10-23: 1,279 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, 2026Viewing1,279-31
Oct 21, 20261,310+6
Oct 16, 20261,304+8
Oct 15, 20261,296-15
Oct 14, 20261,311+822
Oct 12, 2026489+14
Oct 09, 2026475No prior observation