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Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $410.00 Put

WDC261218P00410000

Latest saved OI317Oct 23, 2026
Last change+6vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $410.00 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. 3171580 2026-10-09: 295 OI2026-10-12: 295 OI2026-10-14: 294 OI2026-10-15: 289 OI2026-10-16: 289 OI2026-10-21: 311 OI2026-10-23: 317 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, 2026Viewing317+6
Oct 21, 2026311+22
Oct 16, 20262890
Oct 15, 2026289-5
Oct 14, 2026294-1
Oct 12, 20262950
Oct 09, 2026295No prior observation