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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $450.00 Put

WDC261120P00450000

Latest saved OI564Oct 23, 2026
Last change-13vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $450.00 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. 5802900 2026-10-09: 512 OI2026-10-12: 502 OI2026-10-14: 558 OI2026-10-15: 571 OI2026-10-16: 580 OI2026-10-21: 577 OI2026-10-23: 564 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, 2026Viewing564-13
Oct 21, 2026577-3
Oct 16, 2026580+9
Oct 15, 2026571+13
Oct 14, 2026558+56
Oct 12, 2026502-10
Oct 09, 2026512No prior observation