OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $430.00 Put

WDC261030P00430000

Latest saved OI123Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $430.00 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. 2451220 2026-10-09: 240 OI2026-10-12: 245 OI2026-10-14: 124 OI2026-10-15: 124 OI2026-10-16: 122 OI2026-10-21: 125 OI2026-10-23: 123 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, 2026Viewing123-2
Oct 21, 2026125+3
Oct 16, 2026122-2
Oct 15, 20261240
Oct 14, 2026124-121
Oct 12, 2026245+5
Oct 09, 2026240No prior observation