OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

WDC $400.00 Call

WDC280121C00400000

Latest saved OI420Oct 23, 2026
Last change-1vs 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. 4242120 2026-10-09: 376 OI2026-10-12: 401 OI2026-10-14: 416 OI2026-10-15: 419 OI2026-10-16: 424 OI2026-10-21: 421 OI2026-10-23: 420 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, 2026Viewing420-1
Oct 21, 2026421-3
Oct 16, 2026424+5
Oct 15, 2026419+3
Oct 14, 2026416+15
Oct 12, 2026401+25
Oct 09, 2026376No prior observation