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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $310.00 Put

WDC261023P00310000

Latest saved OI749Oct 23, 2026
Last change+380vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $310.00 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. 7493740 2026-10-09: 95 OI2026-10-12: 114 OI2026-10-14: 137 OI2026-10-15: 137 OI2026-10-16: 218 OI2026-10-21: 369 OI2026-10-23: 749 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, 2026Viewing749+380
Oct 21, 2026369+151
Oct 16, 2026218+81
Oct 15, 20261370
Oct 14, 2026137+23
Oct 12, 2026114+19
Oct 09, 202695No prior observation