OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $270.00 Put

WDC261120P00270000

Latest saved OI704Oct 23, 2026
Last change+23vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $270.00 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. 7043520 2026-10-09: 413 OI2026-10-12: 413 OI2026-10-14: 417 OI2026-10-15: 440 OI2026-10-16: 575 OI2026-10-21: 681 OI2026-10-23: 704 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, 2026Viewing704+23
Oct 21, 2026681+106
Oct 16, 2026575+135
Oct 15, 2026440+23
Oct 14, 2026417+4
Oct 12, 20264130
Oct 09, 2026413No prior observation