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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $350.00 Put

WDC261120P00350000

Latest saved OI2,722Oct 23, 2026
Last change+1,024vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $350.00 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. 2,7221,3610 2026-10-09: 1,508 OI2026-10-12: 1,532 OI2026-10-14: 1,679 OI2026-10-15: 1,705 OI2026-10-16: 1,723 OI2026-10-21: 1,698 OI2026-10-23: 2,722 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, 2026Viewing2,722+1,024
Oct 21, 20261,698-25
Oct 16, 20261,723+18
Oct 15, 20261,705+26
Oct 14, 20261,679+147
Oct 12, 20261,532+24
Oct 09, 20261,508No prior observation