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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $220.00 Put

WDC261120P00220000

Latest saved OI174Oct 23, 2026
Last change+62vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $220.00 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. 174870 2026-10-09: 81 OI2026-10-12: 81 OI2026-10-14: 78 OI2026-10-15: 78 OI2026-10-16: 78 OI2026-10-21: 112 OI2026-10-23: 174 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, 2026Viewing174+62
Oct 21, 2026112+34
Oct 16, 2026780
Oct 15, 2026780
Oct 14, 202678-3
Oct 12, 2026810
Oct 09, 202681No prior observation