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Contract OI history

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Jan 21, 2028 EXPIRATION

FLY $12.50 Put

FLY280121P00012500

Latest saved OI199Oct 20, 2026
Last change+2vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FLY $12.50 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. 199990 2026-10-09: 174 OI2026-10-13: 174 OI2026-10-14: 174 OI2026-10-16: 197 OI2026-10-20: 199 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, 2026Viewing199+2
Oct 16, 2026197+23
Oct 14, 20261740
Oct 13, 20261740
Oct 09, 2026174No prior observation