OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $370.00 Put

WDC261030P00370000

Latest saved OI435Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $370.00 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. 4452220 2026-10-09: 383 OI2026-10-12: 377 OI2026-10-14: 390 OI2026-10-15: 429 OI2026-10-16: 357 OI2026-10-21: 445 OI2026-10-23: 435 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, 2026Viewing435-10
Oct 21, 2026445+88
Oct 16, 2026357-72
Oct 15, 2026429+39
Oct 14, 2026390+13
Oct 12, 2026377-6
Oct 09, 2026383No prior observation