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Contract OI history

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Nov 06, 2026 EXPIRATION

WDC $390.00 Put

WDC261106P00390000

Latest saved OI250Oct 23, 2026
Last change-4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $390.00 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. 2551270 2026-10-09: 143 OI2026-10-12: 142 OI2026-10-14: 219 OI2026-10-15: 222 OI2026-10-16: 255 OI2026-10-21: 254 OI2026-10-23: 250 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, 2026Viewing250-4
Oct 21, 2026254-1
Oct 16, 2026255+33
Oct 15, 2026222+3
Oct 14, 2026219+77
Oct 12, 2026142-1
Oct 09, 2026143No prior observation