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Contract OI history

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Nov 20, 2026 EXPIRATION

BFLY $10.00 Call

BFLY261120C00010000

Latest saved OI6,931Oct 23, 2026
Last change+559vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $10.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6,9313,4650 2026-10-02: 1,353 OI2026-10-05: 1,803 OI2026-10-06: 1,875 OI2026-10-07: 1,958 OI2026-10-08: 3,086 OI2026-10-09: 4,719 OI2026-10-13: 5,014 OI2026-10-14: 5,314 OI2026-10-15: 5,895 OI2026-10-16: 5,986 OI2026-10-21: 6,372 OI2026-10-23: 6,931 OI Oct 02, 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, 2026Viewing6,931+559
Oct 21, 20266,372+386
Oct 16, 20265,986+91
Oct 15, 20265,895+581
Oct 14, 20265,314+300
Oct 13, 20265,014+295
Oct 09, 20264,719+1,633
Oct 08, 20263,086+1,128
Oct 07, 20261,958+83
Oct 06, 20261,875+72
Oct 05, 20261,803+450
Oct 02, 20261,353No prior observation