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Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $140.00 Put

WDC261218P00140000

Latest saved OI609Oct 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 $140.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6093040 2026-10-09: 607 OI2026-10-12: 607 OI2026-10-14: 607 OI2026-10-15: 607 OI2026-10-16: 608 OI2026-10-21: 608 OI2026-10-23: 609 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, 2026Viewing609+1
Oct 21, 20266080
Oct 16, 2026608+1
Oct 15, 20266070
Oct 14, 20266070
Oct 12, 20266070
Oct 09, 2026607No prior observation