OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $400.00 Call

WDC261030C00400000

Latest saved OI1,151Oct 23, 2026
Last change-418vs 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. 1,5697840 2026-10-09: 221 OI2026-10-12: 239 OI2026-10-14: 370 OI2026-10-15: 322 OI2026-10-16: 1,447 OI2026-10-21: 1,569 OI2026-10-23: 1,151 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, 2026Viewing1,151-418
Oct 21, 20261,569+122
Oct 16, 20261,447+1,125
Oct 15, 2026322-48
Oct 14, 2026370+131
Oct 12, 2026239+18
Oct 09, 2026221No prior observation