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Contract OI history

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Jan 21, 2028 EXPIRATION

WDC $330.00 Put

WDC280121P00330000

Latest saved OI578Oct 23, 2026
Last change+443vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $330.00 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. 5782890 2026-10-09: 134 OI2026-10-12: 134 OI2026-10-14: 134 OI2026-10-15: 134 OI2026-10-16: 134 OI2026-10-21: 135 OI2026-10-23: 578 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, 2026Viewing578+443
Oct 21, 2026135+1
Oct 16, 20261340
Oct 15, 20261340
Oct 14, 20261340
Oct 12, 20261340
Oct 09, 2026134No prior observation