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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $345.00 Put

WDC261023P00345000

Latest saved OI377Oct 23, 2026
Last change-12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $345.00 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. 3891940 2026-10-09: 223 OI2026-10-12: 237 OI2026-10-14: 289 OI2026-10-15: 305 OI2026-10-16: 325 OI2026-10-21: 389 OI2026-10-23: 377 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, 2026Viewing377-12
Oct 21, 2026389+64
Oct 16, 2026325+20
Oct 15, 2026305+16
Oct 14, 2026289+52
Oct 12, 2026237+14
Oct 09, 2026223No prior observation