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Contract OI history

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Nov 06, 2026 EXPIRATION

WDC $320.00 Put

WDC261106P00320000

Latest saved OI4,047Oct 23, 2026
Last change+52vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $320.00 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. 4,0472,0230 2026-10-09: 4,022 OI2026-10-12: 4,022 OI2026-10-14: 4,025 OI2026-10-15: 4,016 OI2026-10-16: 4,015 OI2026-10-21: 3,995 OI2026-10-23: 4,047 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, 2026Viewing4,047+52
Oct 21, 20263,995-20
Oct 16, 20264,015-1
Oct 15, 20264,016-9
Oct 14, 20264,025+3
Oct 12, 20264,0220
Oct 09, 20264,022No prior observation