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Contract OI history

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Dec 15, 2028 EXPIRATION

WDC $350.00 Put

WDC281215P00350000

Latest saved OI86Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $350.00 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. 135670 2026-10-09: 135 OI2026-10-12: 135 OI2026-10-14: 131 OI2026-10-15: 131 OI2026-10-16: 131 OI2026-10-21: 86 OI2026-10-23: 86 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, 2026Viewing860
Oct 21, 202686-45
Oct 16, 20261310
Oct 15, 20261310
Oct 14, 2026131-4
Oct 12, 20261350
Oct 09, 2026135No prior observation