OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

FLY $40.00 Call

FLY270115C00040000

Latest saved OI2,887Oct 20, 2026
Last change-6vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FLY $40.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 2,8931,4460 2026-10-09: 2,719 OI2026-10-13: 2,759 OI2026-10-14: 2,771 OI2026-10-16: 2,893 OI2026-10-20: 2,887 OI Oct 09, 2026Oct 20, 2026

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

FLY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing2,887-6
Oct 16, 20262,893+122
Oct 14, 20262,771+12
Oct 13, 20262,759+40
Oct 09, 20262,719No prior observation