OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WDC $350.00 Put

WDC270115P00350000

Latest saved OI2,681Oct 23, 2026
Last change+26vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $350.00 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. 2,7381,3690 2026-10-09: 2,551 OI2026-10-12: 2,545 OI2026-10-14: 2,719 OI2026-10-15: 2,738 OI2026-10-16: 2,641 OI2026-10-21: 2,655 OI2026-10-23: 2,681 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, 2026Viewing2,681+26
Oct 21, 20262,655+14
Oct 16, 20262,641-97
Oct 15, 20262,738+19
Oct 14, 20262,719+174
Oct 12, 20262,545-6
Oct 09, 20262,551No prior observation