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Builders FirstSource (BLDR, Building Products) Stock Valuation & Fair Value Mixed on our tests

Builders FirstSource (BLDR, Building Products) trades at a blended P/E of 13.8, about 6% below its historical normal valuation, with a forward growth estimate of 13.7% and a PEG of 1.01. Analysts' one-year estimates have been hit 9% of the time. Priced at its historical normal P/E of 14.7 on the same blended earnings, the 2026-10-02 close of $56.25 corresponds to about $59.90 a share. This is a valuation reference, not a price target.

Blended P/E
13.8
Normal P/E
14.7
PEG
1.01
Fwd growth
13.7%
Div yield
0.0%
RSI (14)
30.8
Neutral
Technical context
  • Price $53.81 at the 2026-10-08 close, 7.0% below the 20-day average ($57.88) and 16.6% below the 50-day ($64.52).
  • RSI (14) at 30.8.
  • 52-week range $53.55 to $128.96: the price is 58.3% below the high and 0.5% above the low.

The Street vs SeerForecast

Wall Street's mean price target for BLDR is $79.90 across 21 analysts, 48.5% above the current price. The average analyst rating is Buy. Our SeerForecast read of the same stock, formed without analyst targets: mixed on our tests. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating has been mixed on our tests since 2026-06-03.

Blended P/E and rating by weekBlended P/E moved from 13.2 to 13.8 between 2026-06-03 and 2026-10-02, against a normal P/E of 14.7, with 0 rating changes over 36 recorded weeks.2026-06-03: P/E 13.2, Mixed on our tests, recalculated for the week of 2026-06-032026-06-10: P/E 12.8, Mixed on our tests, recalculated for the week of 2026-06-102026-06-12: P/E 12.8, Mixed on our tests, recalculated for the week of 2026-06-142026-06-16: P/E 12.8, Mixed on our tests, recalculated for the week of 2026-06-162026-06-18: P/E 12.8, Mixed on our tests, recalculated for the week of 2026-06-212026-07-02: P/E 15.3, Mixed on our tests, recalculated for the week of 2026-07-022026-07-06: P/E 15.3, Mixed on our tests, recalculated for the week of 2026-07-062026-07-09: P/E 15.3, Mixed on our tests, recalculated for the week of 2026-07-092026-07-10: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-07-122026-07-13: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-07-132026-07-14: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-07-142026-07-20: P/E 13.7, Mixed on our tests, recalculated for the week of 2026-07-202026-07-22: P/E 13.7, Mixed on our tests, recalculated for the week of 2026-07-222026-07-24: P/E 13.7, Mixed on our tests, recalculated for the week of 2026-07-252026-07-27: P/E 13.7, Mixed on our tests, recalculated for the week of 2026-07-272026-07-31: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-07-312026-07-31: P/E 14.1, Mixed on our tests, recorded live 2026-08-032026-08-07: P/E 15.6, Mixed on our tests, recalculated for the week of 2026-08-072026-08-07: P/E 16.1, Mixed on our tests, recorded live 2026-08-102026-08-14: P/E 15.8, Mixed on our tests, recorded live 2026-08-172026-08-21: P/E 15.6, Mixed on our tests, recalculated for the week of 2026-08-212026-08-21: P/E 15.6, Mixed on our tests, recorded live 2026-08-242026-08-27: P/E 15.6, Mixed on our tests, recalculated for the week of 2026-08-272026-08-28: P/E 15.1, Mixed on our tests, recalculated for the week of 2026-08-282026-08-28: P/E 15.3, Mixed on our tests, recalculated for the week of 2026-08-302026-08-28: P/E 15.3, Mixed on our tests, recorded live 2026-08-312026-09-04: P/E 15.1, Mixed on our tests, recalculated for the week of 2026-09-052026-09-04: P/E 15.1, Mixed on our tests, recorded live 2026-09-072026-09-11: P/E 14.1, Mixed on our tests, recalculated for the week of 2026-09-122026-09-11: P/E 14.1, Mixed on our tests, recorded live 2026-09-142026-09-18: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-09-192026-09-18: P/E 13.8, Mixed on our tests, recorded live 2026-09-212026-09-25: P/E 14.3, Mixed on our tests, recalculated for the week of 2026-09-262026-09-25: P/E 14.3, Mixed on our tests, recorded live 2026-09-282026-10-02: P/E 13.8, Mixed on our tests, recalculated for the week of 2026-10-032026-10-02: P/E 13.8, Mixed on our tests, recorded live 2026-10-0513.014.015.016.0Jun 3Jul 3Aug 2Sep 2Oct 2Normal P/E 14.7
Mixed on our tests

Not every point was recorded live. Points marked recalculated apply today's valuation rules to the metrics tickerseer archived that week.

Selected weeks: the first, the latest, and the cheapest and dearest.

WeekBlended P/EPremium to normal P/ERating
2026-06-03P/E 13.2-10%Mixed on our tests (recalculated)
2026-06-10P/E 12.8-13%Mixed on our tests (recalculated)
2026-08-10P/E 16.1+9%Mixed on our tests
2026-10-05P/E 13.8-6%Mixed on our tests ← now
Show all 36 weeks
WeekBlended P/EPremium to normal P/ERating
2026-06-03P/E 13.2-10%Mixed on our tests (recalculated)
2026-06-10P/E 12.8-13%Mixed on our tests (recalculated)
2026-06-14P/E 12.8-13%Mixed on our tests (recalculated)
2026-06-16P/E 12.8-13%Mixed on our tests (recalculated)
2026-06-21P/E 12.8-13%Mixed on our tests (recalculated)
2026-07-02P/E 15.3+4%Mixed on our tests (recalculated)
2026-07-06P/E 15.3+4%Mixed on our tests (recalculated)
2026-07-09P/E 15.3+4%Mixed on our tests (recalculated)
2026-07-12P/E 13.8-6%Mixed on our tests (recalculated)
2026-07-13P/E 13.8-6%Mixed on our tests (recalculated)
2026-07-14P/E 13.8-6%Mixed on our tests (recalculated)
2026-07-20P/E 13.7-7%Mixed on our tests (recalculated)
2026-07-22P/E 13.7-7%Mixed on our tests (recalculated)
2026-07-25P/E 13.7-7%Mixed on our tests (recalculated)
2026-07-27P/E 13.7-7%Mixed on our tests (recalculated)
2026-07-31P/E 13.8-6%Mixed on our tests (recalculated)
2026-08-03P/E 14.1-4%Mixed on our tests
2026-08-07P/E 15.6+6%Mixed on our tests (recalculated)
2026-08-10P/E 16.1+9%Mixed on our tests
2026-08-17P/E 15.8+8%Mixed on our tests
2026-08-21P/E 15.6+6%Mixed on our tests (recalculated)
2026-08-24P/E 15.6+6%Mixed on our tests
2026-08-27P/E 15.6+6%Mixed on our tests (recalculated)
2026-08-28P/E 15.1+3%Mixed on our tests (recalculated)
2026-08-30P/E 15.3+4%Mixed on our tests (recalculated)
2026-08-31P/E 15.3+4%Mixed on our tests
2026-09-05P/E 15.1+3%Mixed on our tests (recalculated)
2026-09-07P/E 15.1+3%Mixed on our tests
2026-09-12P/E 14.1-4%Mixed on our tests (recalculated)
2026-09-14P/E 14.1-4%Mixed on our tests
2026-09-19P/E 13.8-6%Mixed on our tests (recalculated)
2026-09-21P/E 13.8-6%Mixed on our tests
2026-09-26P/E 14.3-3%Mixed on our tests (recalculated)
2026-09-28P/E 14.3-3%Mixed on our tests
2026-10-03P/E 13.8-6%Mixed on our tests (recalculated)
2026-10-05P/E 13.8-6%Mixed on our tests ← now

Frequently asked questions

Is Builders FirstSource stock overvalued?

At a blended P/E of 13.8 versus its historical normal P/E of 14.7, Builders FirstSource trades about 6% below its typical valuation, with a PEG of 1.01 on 13.7% forward growth. tickerseer currently rates it mixed on our tests.

What is Builders FirstSource's fair value and PEG?

Builders FirstSource trades at a blended P/E of 13.8 against a historical normal P/E of 14.7, a PEG of 1.01, and a forward growth estimate of 13.7%. Priced at its historical normal P/E of 14.7 on the same blended earnings, the 2026-10-02 close of $56.25 corresponds to about $59.90 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Builders FirstSource changed?

tickerseer's rating has been mixed on our tests since 2026-06-03.

What is the analyst price target for Builders FirstSource?

The mean Wall Street price target for Builders FirstSource is $79.90 across 21 analysts, 48.5% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Building Products. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and the AI research note. Options setups and metric history are part of the paid plans.

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