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Contract OI history

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Jan 15, 2027 EXPIRATION

BFLY $7.50 Put

BFLY270115P00007500

Latest saved OI1,444Oct 23, 2026
Last change+105vs 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. 1,4447220 2026-10-02: 1,242 OI2026-10-05: 1,242 OI2026-10-06: 1,241 OI2026-10-07: 1,273 OI2026-10-08: 1,276 OI2026-10-09: 1,277 OI2026-10-13: 1,275 OI2026-10-14: 1,298 OI2026-10-15: 1,311 OI2026-10-16: 1,311 OI2026-10-21: 1,339 OI2026-10-23: 1,444 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, 2026Viewing1,444+105
Oct 21, 20261,339+28
Oct 16, 20261,3110
Oct 15, 20261,311+13
Oct 14, 20261,298+23
Oct 13, 20261,275-2
Oct 09, 20261,277+1
Oct 08, 20261,276+3
Oct 07, 20261,273+32
Oct 06, 20261,241-1
Oct 05, 20261,2420
Oct 02, 20261,242No prior observation