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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $350.00 Put

WDC261023P00350000

Latest saved OI1,028Oct 23, 2026
Last change+195vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $350.00 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. 1,0285140 2026-10-09: 702 OI2026-10-12: 709 OI2026-10-14: 735 OI2026-10-15: 767 OI2026-10-16: 766 OI2026-10-21: 833 OI2026-10-23: 1,028 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, 2026Viewing1,028+195
Oct 21, 2026833+67
Oct 16, 2026766-1
Oct 15, 2026767+32
Oct 14, 2026735+26
Oct 12, 2026709+7
Oct 09, 2026702No prior observation