OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

UNIT $8.00 Call

UNIT270521C00008000

Latest saved OI6,722Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
UNIT $8.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 6,7223,3610 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 0 OI2026-10-14: 10 OI2026-10-16: 6,697 OI2026-10-21: 6,722 OI2026-10-23: 6,722 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

UNIT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6,7220
Oct 21, 20266,722+25
Oct 16, 20266,697+6,687
Oct 14, 202610+10
Oct 13, 202600
Oct 09, 202600
Oct 08, 20260No prior observation