OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

FLY $20.00 Put

FLY261120P00020000

Latest saved OI832Oct 20, 2026
Last change+4vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FLY $20.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 8324160 2026-10-09: 655 OI2026-10-13: 667 OI2026-10-14: 785 OI2026-10-16: 828 OI2026-10-20: 832 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, 2026Viewing832+4
Oct 16, 2026828+43
Oct 14, 2026785+118
Oct 13, 2026667+12
Oct 09, 2026655No prior observation