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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $390.00 Put

WDC261023P00390000

Latest saved OI454Oct 23, 2026
Last change-217vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $390.00 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. 7523760 2026-10-09: 678 OI2026-10-12: 687 OI2026-10-14: 712 OI2026-10-15: 706 OI2026-10-16: 752 OI2026-10-21: 671 OI2026-10-23: 454 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, 2026Viewing454-217
Oct 21, 2026671-81
Oct 16, 2026752+46
Oct 15, 2026706-6
Oct 14, 2026712+25
Oct 12, 2026687+9
Oct 09, 2026678No prior observation