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Contract OI history

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Apr 16, 2027 EXPIRATION

BFLY $7.50 Put

BFLY270416P00007500

Latest saved OI155Oct 23, 2026
Last change+1vs 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. 155770 2026-10-02: 91 OI2026-10-05: 91 OI2026-10-06: 91 OI2026-10-07: 93 OI2026-10-08: 151 OI2026-10-09: 151 OI2026-10-13: 153 OI2026-10-14: 153 OI2026-10-15: 154 OI2026-10-16: 154 OI2026-10-21: 154 OI2026-10-23: 155 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, 2026Viewing155+1
Oct 21, 20261540
Oct 16, 20261540
Oct 15, 2026154+1
Oct 14, 20261530
Oct 13, 2026153+2
Oct 09, 20261510
Oct 08, 2026151+58
Oct 07, 202693+2
Oct 06, 2026910
Oct 05, 2026910
Oct 02, 202691No prior observation