OITracker Cboe delayed data

Contract OI history

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Dec 17, 2027 EXPIRATION

OPEN $5.50 Call

OPEN1271217C00005500

Latest saved OI3,688Oct 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 $5.50 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. 3,7081,8540 2026-10-09: 3,708 OI2026-10-13: 3,708 OI2026-10-14: 3,708 OI2026-10-15: 3,688 OI2026-10-16: 3,688 OI2026-10-21: 3,688 OI2026-10-23: 3,688 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, 2026Viewing3,6880
Oct 21, 20263,6880
Oct 16, 20263,6880
Oct 15, 20263,688-20
Oct 14, 20263,7080
Oct 13, 20263,7080
Oct 09, 20263,708No prior observation