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Contract OI history

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Jun 17, 2027 EXPIRATION

WDC $310.00 Put

WDC270617P00310000

Latest saved OI867Oct 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 $310.00 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. 8674330 2026-10-09: 414 OI2026-10-12: 414 OI2026-10-14: 513 OI2026-10-15: 515 OI2026-10-16: 519 OI2026-10-21: 866 OI2026-10-23: 867 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, 2026Viewing867+1
Oct 21, 2026866+347
Oct 16, 2026519+4
Oct 15, 2026515+2
Oct 14, 2026513+99
Oct 12, 20264140
Oct 09, 2026414No prior observation