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Contract OI history

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Jun 17, 2027 EXPIRATION

WDC $290.00 Put

WDC270617P00290000

Latest saved OI183Oct 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 $290.00 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. 184920 2026-10-09: 172 OI2026-10-12: 172 OI2026-10-14: 173 OI2026-10-15: 173 OI2026-10-16: 173 OI2026-10-21: 184 OI2026-10-23: 183 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, 2026Viewing183-1
Oct 21, 2026184+11
Oct 16, 20261730
Oct 15, 20261730
Oct 14, 2026173+1
Oct 12, 20261720
Oct 09, 2026172No prior observation