OITracker Cboe delayed data

Contract OI history

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Jun 16, 2028 EXPIRATION

WDC $300.00 Put

WDC280616P00300000

Latest saved OI244Oct 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 $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. 2461230 2026-10-09: 147 OI2026-10-12: 147 OI2026-10-14: 246 OI2026-10-15: 246 OI2026-10-16: 246 OI2026-10-21: 246 OI2026-10-23: 244 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, 2026Viewing244-2
Oct 21, 20262460
Oct 16, 20262460
Oct 15, 20262460
Oct 14, 2026246+99
Oct 12, 20261470
Oct 09, 2026147No prior observation