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Contract OI history

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Jan 21, 2028 EXPIRATION

BFLY $2.00 Put

BFLY280121P00002000

Latest saved OI1,360Oct 23, 2026
Last change+226vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $2.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3606800 2026-10-02: 1,131 OI2026-10-05: 1,129 OI2026-10-06: 1,129 OI2026-10-07: 1,109 OI2026-10-08: 1,109 OI2026-10-09: 1,083 OI2026-10-13: 1,083 OI2026-10-14: 1,083 OI2026-10-15: 1,082 OI2026-10-16: 1,082 OI2026-10-21: 1,134 OI2026-10-23: 1,360 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, 2026Viewing1,360+226
Oct 21, 20261,134+52
Oct 16, 20261,0820
Oct 15, 20261,082-1
Oct 14, 20261,0830
Oct 13, 20261,0830
Oct 09, 20261,083-26
Oct 08, 20261,1090
Oct 07, 20261,109-20
Oct 06, 20261,1290
Oct 05, 20261,129-2
Oct 02, 20261,131No prior observation