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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $480.00 Put

WDC261120P00480000

Latest saved OI215Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $480.00 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. 2151070 2026-10-09: 210 OI2026-10-12: 208 OI2026-10-14: 209 OI2026-10-15: 208 OI2026-10-16: 206 OI2026-10-21: 215 OI2026-10-23: 215 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, 2026Viewing2150
Oct 21, 2026215+9
Oct 16, 2026206-2
Oct 15, 2026208-1
Oct 14, 2026209+1
Oct 12, 2026208-2
Oct 09, 2026210No prior observation