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Builders FirstSource, Inc. (BLDR) short interest & options flow

NYSE

Short interest in Builders FirstSource has climbed to 8.8% of free float, the highest reading since late September, with a 14.9% week-on-week rise that puts it at its steepest level in over a year. The company reports third-quarter earnings today. Why this matters: Three distinct data streams are pointing in the same direction at once, on a stock that has already lost roughly…

Latest pulse26 Oct 2026

BLDR downgraded to Hold by Loop Capital, target $62, down from Buy rating as housing fundamentals deteriorate.

$67.82+4.48% 1d+20.65% 1w+20.57% 1mClose: 2 Nov 2026
Short interest % of float
Rising
Live SI on ORTEX →
Cost to borrow
Low and dropping
Live CTB on ORTEX →
Availability
High
Live availability on ORTEX →
Market cap
$6.98B
Next earnings
17 Nov 2026
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Key data as of 3 Nov 2026

ORTEX chart of Builders FirstSource, Inc. (BLDR) share price and short interest (% of free float), six months to November 2, 2026

Latest signals on BLDR

  • Analyst

    BLDR downgraded to Hold by Loop Capital, target $62, down from Buy rating as housing fundamentals deteriorate.

    3 Analyst updates in 30 days

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