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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $347.50 Put

WDC261120P00347500

Latest saved OI1,005Oct 23, 2026
Last change+1,004vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $347.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 1,0055020 2026-10-21: 1 OI2026-10-23: 1,005 OI Oct 21, 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, 2026Viewing1,005+1,004
Oct 21, 20261No prior observation