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Contract OI history

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Mar 19, 2027 EXPIRATION

WDC $480.00 Put

WDC270319P00480000

Latest saved OI522Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $480.00 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. 5252620 2026-10-09: 523 OI2026-10-12: 523 OI2026-10-14: 525 OI2026-10-15: 525 OI2026-10-16: 525 OI2026-10-21: 525 OI2026-10-23: 522 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, 2026Viewing522-3
Oct 21, 20265250
Oct 16, 20265250
Oct 15, 20265250
Oct 14, 2026525+2
Oct 12, 20265230
Oct 09, 2026523No prior observation