OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $330.00 Put

WDC261120P00330000

Latest saved OI1,003Oct 23, 2026
Last change-59vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $330.00 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. 1,0625310 2026-10-09: 654 OI2026-10-12: 734 OI2026-10-14: 817 OI2026-10-15: 884 OI2026-10-16: 935 OI2026-10-21: 1,062 OI2026-10-23: 1,003 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, 2026Viewing1,003-59
Oct 21, 20261,062+127
Oct 16, 2026935+51
Oct 15, 2026884+67
Oct 14, 2026817+83
Oct 12, 2026734+80
Oct 09, 2026654No prior observation