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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $290.00 Put

WDC261023P00290000

Latest saved OI1,526Oct 23, 2026
Last change+918vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $290.00 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. 1,5267630 2026-10-09: 34 OI2026-10-12: 37 OI2026-10-14: 289 OI2026-10-15: 325 OI2026-10-16: 352 OI2026-10-21: 608 OI2026-10-23: 1,526 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, 2026Viewing1,526+918
Oct 21, 2026608+256
Oct 16, 2026352+27
Oct 15, 2026325+36
Oct 14, 2026289+252
Oct 12, 202637+3
Oct 09, 202634No prior observation