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Contract OI history

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Jun 16, 2028 EXPIRATION

WDC $350.00 Put

WDC280616P00350000

Latest saved OI123Oct 23, 2026
Last change+1vs 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. 123610 2026-10-09: 21 OI2026-10-12: 121 OI2026-10-14: 121 OI2026-10-15: 122 OI2026-10-16: 122 OI2026-10-21: 122 OI2026-10-23: 123 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, 2026Viewing123+1
Oct 21, 20261220
Oct 16, 20261220
Oct 15, 2026122+1
Oct 14, 20261210
Oct 12, 2026121+100
Oct 09, 202621No prior observation