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Contract OI history

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Mar 19, 2027 EXPIRATION

WDC $640.00 Call

WDC270319C00640000

Latest saved OI100Oct 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 $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. 102510 2026-10-09: 102 OI2026-10-12: 102 OI2026-10-14: 102 OI2026-10-15: 102 OI2026-10-16: 101 OI2026-10-21: 101 OI2026-10-23: 100 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, 2026Viewing100-1
Oct 21, 20261010
Oct 16, 2026101-1
Oct 15, 20261020
Oct 14, 20261020
Oct 12, 20261020
Oct 09, 2026102No prior observation