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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $280.00 Put

WDC261023P00280000

Latest saved OI1,024Oct 23, 2026
Last change+450vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $280.00 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. 1,0245120 2026-10-09: 142 OI2026-10-12: 142 OI2026-10-14: 404 OI2026-10-15: 399 OI2026-10-16: 456 OI2026-10-21: 574 OI2026-10-23: 1,024 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, 2026Viewing1,024+450
Oct 21, 2026574+118
Oct 16, 2026456+57
Oct 15, 2026399-5
Oct 14, 2026404+262
Oct 12, 20261420
Oct 09, 2026142No prior observation