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Contract OI history

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Nov 06, 2026 EXPIRATION

WDC $340.00 Put

WDC261106P00340000

Latest saved OI233Oct 23, 2026
Last change+9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $340.00 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. 2331160 2026-10-09: 116 OI2026-10-12: 118 OI2026-10-14: 123 OI2026-10-15: 130 OI2026-10-16: 147 OI2026-10-21: 224 OI2026-10-23: 233 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, 2026Viewing233+9
Oct 21, 2026224+77
Oct 16, 2026147+17
Oct 15, 2026130+7
Oct 14, 2026123+5
Oct 12, 2026118+2
Oct 09, 2026116No prior observation