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Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $340.00 Call

WDC261218C00340000

Latest saved OI243Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $340.00 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. 2431210 2026-10-09: 91 OI2026-10-12: 91 OI2026-10-14: 90 OI2026-10-15: 96 OI2026-10-16: 142 OI2026-10-21: 224 OI2026-10-23: 243 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, 2026Viewing243+19
Oct 21, 2026224+82
Oct 16, 2026142+46
Oct 15, 202696+6
Oct 14, 202690-1
Oct 12, 2026910
Oct 09, 202691No prior observation