Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $440.00 Call

WDC261120C00440000

Latest saved OI528Oct 23, 2026
Last change+99vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $440.00 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. 5282640 2026-10-09: 341 OI2026-10-12: 339 OI2026-10-14: 330 OI2026-10-15: 323 OI2026-10-16: 338 OI2026-10-21: 429 OI2026-10-23: 528 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, 2026Viewing528+99
Oct 21, 2026429+91
Oct 16, 2026338+15
Oct 15, 2026323-7
Oct 14, 2026330-9
Oct 12, 2026339-2
Oct 09, 2026341No prior observation