OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

OPEN $5.00 Call

OPEN270521C00005000

Latest saved OI560Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $5.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5602800 2026-10-09: 219 OI2026-10-13: 242 OI2026-10-14: 242 OI2026-10-15: 323 OI2026-10-16: 356 OI2026-10-21: 560 OI2026-10-23: 560 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5600
Oct 21, 2026560+204
Oct 16, 2026356+33
Oct 15, 2026323+81
Oct 14, 20262420
Oct 13, 2026242+23
Oct 09, 2026219No prior observation