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Contract OI history

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Nov 20, 2026 EXPIRATION

BFLY $7.50 Put

BFLY261120P00007500

Latest saved OI1,300Oct 23, 2026
Last change+38vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BFLY $7.50 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. 1,3006500 2026-10-02: 608 OI2026-10-05: 722 OI2026-10-06: 784 OI2026-10-07: 864 OI2026-10-08: 934 OI2026-10-09: 1,028 OI2026-10-13: 1,007 OI2026-10-14: 1,012 OI2026-10-15: 1,029 OI2026-10-16: 1,238 OI2026-10-21: 1,262 OI2026-10-23: 1,300 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, 2026Viewing1,300+38
Oct 21, 20261,262+24
Oct 16, 20261,238+209
Oct 15, 20261,029+17
Oct 14, 20261,012+5
Oct 13, 20261,007-21
Oct 09, 20261,028+94
Oct 08, 2026934+70
Oct 07, 2026864+80
Oct 06, 2026784+62
Oct 05, 2026722+114
Oct 02, 2026608No prior observation