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Contract OI history

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Jan 15, 2027 EXPIRATION

FLY $17.50 Put

FLY270115P00017500

Latest saved OI443Oct 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 $17.50 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. 4452220 2026-10-09: 433 OI2026-10-13: 444 OI2026-10-14: 445 OI2026-10-16: 444 OI2026-10-20: 443 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, 2026Viewing443-1
Oct 16, 2026444-1
Oct 14, 2026445+1
Oct 13, 2026444+11
Oct 09, 2026433No prior observation