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Contract OI history

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Oct 30, 2026 EXPIRATION

FLY $18.50 Put

FLY261030P00018500

Latest saved OI81Oct 20, 2026
Last change+68vs previous saved observation
Saved market days4Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
FLY $18.50 put open interest history 4 saved observations from 2026-10-13 to 2026-10-20. Exact values and changes are listed in the table below. 81400 2026-10-13: 6 OI2026-10-14: 6 OI2026-10-16: 13 OI2026-10-20: 81 OI Oct 13, 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, 2026Viewing81+68
Oct 16, 202613+7
Oct 14, 202660
Oct 13, 20266No prior observation