OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WDC $270.00 Put

WDC270115P00270000

Latest saved OI503Oct 23, 2026
Last change+5vs 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. 5152570 2026-10-09: 515 OI2026-10-12: 515 OI2026-10-14: 505 OI2026-10-15: 505 OI2026-10-16: 497 OI2026-10-21: 498 OI2026-10-23: 503 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, 2026Viewing503+5
Oct 21, 2026498+1
Oct 16, 2026497-8
Oct 15, 20265050
Oct 14, 2026505-10
Oct 12, 20265150
Oct 09, 2026515No prior observation