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Contract OI history

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Jan 21, 2028 EXPIRATION

WDC $420.00 Call

WDC280121C00420000

Latest saved OI302Oct 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 $420.00 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. 3031510 2026-10-09: 303 OI2026-10-12: 303 OI2026-10-14: 302 OI2026-10-15: 302 OI2026-10-16: 298 OI2026-10-21: 298 OI2026-10-23: 302 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, 2026Viewing302+4
Oct 21, 20262980
Oct 16, 2026298-4
Oct 15, 20263020
Oct 14, 2026302-1
Oct 12, 20263030
Oct 09, 2026303No prior observation