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Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $440.00 Call

WDC261218C00440000

Latest saved OI422Oct 23, 2026
Last change+48vs 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. 4222110 2026-10-09: 205 OI2026-10-12: 211 OI2026-10-14: 219 OI2026-10-15: 218 OI2026-10-16: 215 OI2026-10-21: 374 OI2026-10-23: 422 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, 2026Viewing422+48
Oct 21, 2026374+159
Oct 16, 2026215-3
Oct 15, 2026218-1
Oct 14, 2026219+8
Oct 12, 2026211+6
Oct 09, 2026205No prior observation