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Contract OI history

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Jun 16, 2028 EXPIRATION

WDC $390.00 Put

WDC280616P00390000

Latest saved OI119Oct 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 $390.00 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. 130650 2026-10-09: 124 OI2026-10-12: 130 OI2026-10-14: 119 OI2026-10-15: 119 OI2026-10-16: 119 OI2026-10-21: 119 OI2026-10-23: 119 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, 2026Viewing1190
Oct 21, 20261190
Oct 16, 20261190
Oct 15, 20261190
Oct 14, 2026119-11
Oct 12, 2026130+6
Oct 09, 2026124No prior observation