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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $200.00 Put

WDC261120P00200000

Latest saved OI496Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $200.00 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. 6163080 2026-10-09: 227 OI2026-10-12: 228 OI2026-10-14: 603 OI2026-10-15: 604 OI2026-10-16: 616 OI2026-10-21: 495 OI2026-10-23: 496 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, 2026Viewing496+1
Oct 21, 2026495-121
Oct 16, 2026616+12
Oct 15, 2026604+1
Oct 14, 2026603+375
Oct 12, 2026228+1
Oct 09, 2026227No prior observation