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Contract OI history

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Jun 17, 2027 EXPIRATION

WDC $350.00 Put

WDC270617P00350000

Latest saved OI504Oct 23, 2026
Last change+103vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $350.00 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. 5042520 2026-10-09: 390 OI2026-10-12: 391 OI2026-10-14: 390 OI2026-10-15: 397 OI2026-10-16: 397 OI2026-10-21: 401 OI2026-10-23: 504 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, 2026Viewing504+103
Oct 21, 2026401+4
Oct 16, 20263970
Oct 15, 2026397+7
Oct 14, 2026390-1
Oct 12, 2026391+1
Oct 09, 2026390No prior observation