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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $500.00 Put

WDC261120P00500000

Latest saved OI160Oct 23, 2026
Last change-11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $500.00 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. 173860 2026-10-09: 131 OI2026-10-12: 132 OI2026-10-14: 133 OI2026-10-15: 133 OI2026-10-16: 173 OI2026-10-21: 171 OI2026-10-23: 160 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, 2026Viewing160-11
Oct 21, 2026171-2
Oct 16, 2026173+40
Oct 15, 20261330
Oct 14, 2026133+1
Oct 12, 2026132+1
Oct 09, 2026131No prior observation