OITracker Cboe delayed data

Contract OI history

Back to FLY

Jan 15, 2027 EXPIRATION

FLY $20.00 Put

FLY270115P00020000

Latest saved OI1,958Oct 20, 2026
Last change-3vs 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. 1,9639810 2026-10-09: 1,934 OI2026-10-13: 1,956 OI2026-10-14: 1,963 OI2026-10-16: 1,961 OI2026-10-20: 1,958 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, 2026Viewing1,958-3
Oct 16, 20261,961-2
Oct 14, 20261,963+7
Oct 13, 20261,956+22
Oct 09, 20261,934No prior observation