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Contract OI history

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Dec 18, 2026 EXPIRATION

BYRN $2.50 Put

BYRN261218P00002500

Latest saved OI200Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BYRN $2.50 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2051020 2026-10-08: 205 OI2026-10-09: 205 OI2026-10-13: 205 OI2026-10-14: 205 OI2026-10-15: 200 OI2026-10-16: 200 OI2026-10-20: 200 OI2026-10-23: 200 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BYRN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2000
Oct 20, 20262000
Oct 16, 20262000
Oct 15, 2026200-5
Oct 14, 20262050
Oct 13, 20262050
Oct 09, 20262050
Oct 08, 2026205No prior observation