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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $640.00 Call

WDC261023C00640000

Latest saved OI319Oct 23, 2026
Last change+12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $640.00 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. 3191590 2026-10-09: 42 OI2026-10-12: 42 OI2026-10-14: 109 OI2026-10-15: 109 OI2026-10-16: 109 OI2026-10-21: 307 OI2026-10-23: 319 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, 2026Viewing319+12
Oct 21, 2026307+198
Oct 16, 20261090
Oct 15, 20261090
Oct 14, 2026109+67
Oct 12, 2026420
Oct 09, 202642No prior observation