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Contract OI history

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Jan 21, 2028 EXPIRATION

FLY $20.00 Put

FLY280121P00020000

Latest saved OI1,019Oct 20, 2026
Last change+1vs 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. 1,0195090 2026-10-09: 1,016 OI2026-10-13: 1,016 OI2026-10-14: 1,018 OI2026-10-16: 1,018 OI2026-10-20: 1,019 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, 2026Viewing1,019+1
Oct 16, 20261,0180
Oct 14, 20261,018+2
Oct 13, 20261,0160
Oct 09, 20261,016No prior observation