OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $330.00 Put

WDC261030P00330000

Latest saved OI322Oct 23, 2026
Last change-1vs 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. 3231610 2026-10-09: 258 OI2026-10-12: 261 OI2026-10-14: 256 OI2026-10-15: 248 OI2026-10-16: 308 OI2026-10-21: 323 OI2026-10-23: 322 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, 2026Viewing322-1
Oct 21, 2026323+15
Oct 16, 2026308+60
Oct 15, 2026248-8
Oct 14, 2026256-5
Oct 12, 2026261+3
Oct 09, 2026258No prior observation