OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $300.00 Put

WDC261030P00300000

Latest saved OI630Oct 23, 2026
Last change+240vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $300.00 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. 6303150 2026-10-09: 141 OI2026-10-12: 142 OI2026-10-14: 125 OI2026-10-15: 134 OI2026-10-16: 352 OI2026-10-21: 390 OI2026-10-23: 630 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, 2026Viewing630+240
Oct 21, 2026390+38
Oct 16, 2026352+218
Oct 15, 2026134+9
Oct 14, 2026125-17
Oct 12, 2026142+1
Oct 09, 2026141No prior observation