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Contract OI history

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Jan 21, 2028 EXPIRATION

WDC $360.00 Put

WDC280121P00360000

Latest saved OI415Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $360.00 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. 4152070 2026-10-09: 373 OI2026-10-12: 374 OI2026-10-14: 410 OI2026-10-15: 410 OI2026-10-16: 410 OI2026-10-21: 410 OI2026-10-23: 415 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, 2026Viewing415+5
Oct 21, 20264100
Oct 16, 20264100
Oct 15, 20264100
Oct 14, 2026410+36
Oct 12, 2026374+1
Oct 09, 2026373No prior observation