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Contract OI history

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Nov 06, 2026 EXPIRATION

WDC $400.00 Put

WDC261106P00400000

Latest saved OI365Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $400.00 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. 3791890 2026-10-09: 357 OI2026-10-12: 361 OI2026-10-14: 379 OI2026-10-15: 378 OI2026-10-16: 373 OI2026-10-21: 362 OI2026-10-23: 365 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, 2026Viewing365+3
Oct 21, 2026362-11
Oct 16, 2026373-5
Oct 15, 2026378-1
Oct 14, 2026379+18
Oct 12, 2026361+4
Oct 09, 2026357No prior observation