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Contract OI history

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Dec 18, 2026 EXPIRATION

BFLY $10.00 Call

BFLY261218C00010000

Latest saved OI413Oct 23, 2026
Last change0vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $10.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 4132060 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 413 OI2026-10-23: 413 OI Oct 15, 2026Oct 23, 2026

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

BFLY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4130
Oct 21, 2026413+413
Oct 16, 202600
Oct 15, 20260No prior observation