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Contract OI history

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Jan 21, 2028 EXPIRATION

WDC $240.00 Put

WDC280121P00240000

Latest saved OI668Oct 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 $240.00 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. 6683340 2026-10-09: 256 OI2026-10-12: 263 OI2026-10-14: 668 OI2026-10-15: 668 OI2026-10-16: 668 OI2026-10-21: 668 OI2026-10-23: 668 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, 2026Viewing6680
Oct 21, 20266680
Oct 16, 20266680
Oct 15, 20266680
Oct 14, 2026668+405
Oct 12, 2026263+7
Oct 09, 2026256No prior observation