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Contract OI history

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Mar 19, 2027 EXPIRATION

WDC $420.00 Call

WDC270319C00420000

Latest saved OI344Oct 23, 2026
Last change+13vs 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. 3441720 2026-10-09: 310 OI2026-10-12: 296 OI2026-10-14: 308 OI2026-10-15: 317 OI2026-10-16: 319 OI2026-10-21: 331 OI2026-10-23: 344 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, 2026Viewing344+13
Oct 21, 2026331+12
Oct 16, 2026319+2
Oct 15, 2026317+9
Oct 14, 2026308+12
Oct 12, 2026296-14
Oct 09, 2026310No prior observation