Builders FirstSource Inc
NYSE: BLDR · INDUSTRIALS · BUILDING PRODUCTS & EQUIPMENT
Updated 2026-04-29
Builders FirstSource Inc (BLDR) Stock Valuation Analysis
Fair value estimate, historical valuation range, and quality signals for BLDR.
Current price exceeds what fundamentals support. Risk/reward skewed unfavorably.
BLDR historical valuation range
Where current P/E sits in BLDR's own 5Y range.
BLDR intrinsic value (DCF)
DCF-based fair value estimate vs current market price.
Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.
BLDR valuation signals
Quick-read green flags, caution flags, and risks based on current metrics.
P/E Ratio — History
Current: 21.43x
P/S Ratio — History
Current: 0.59x
Is BLDR overvalued in 2026?
Builders FirstSource Inc (BLDR) currently trades at $83.38 per share with a market capitalization of $8,964,632,000.00. Based on our multi-factor framework, the stock appears richly valued with a Smart Value Score of 45/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.
The stock trades at a P/E ratio of 21.4x, above its 5-year median of 15.8x. The PEG ratio of 2.02 indicates the price has run ahead of the underlying growth rate.
Looking at its own history, BLDR is currently trading more expensive than 72% of the last 5Y on P/E. This places it in the 72th percentile of its historical range, a reasonable but unremarkable position.
Our discounted cash flow model estimates BLDR's intrinsic value at $107.86 per share, against the current market price of $83.38. This implies a premium to fair value of -17.69%. The current price sits well above what projected cash flows justify, implying investors are paying for growth that has not yet materialized.
Financial quality is a concern. The Piotroski F-Score of 3/9 flags weakening fundamentals that deserve closer scrutiny before the valuation case can be fully trusted.
Bottom line: BLDR appears richly valued on our framework, with a Smart Value Score of 45/100. At current levels the risk/reward is skewed against the buyer. A materially lower price or significant operational improvement would be needed to change the picture.
Frequently asked questions
Is BLDR overvalued in 2026?
Based on a Smart Value Score of 45/100, BLDR appears overvalued. Current price exceeds what fundamentals currently justify.
What is BLDR's fair value?
Our DCF model estimates BLDR's intrinsic value at $107.86 per share, versus the current price of $83.38. This produces a margin of safety of -17.69%.
What P/E ratio does BLDR trade at?
BLDR trades at a P/E of 21.4x on trailing twelve-month earnings, compared to its 5-year median of 15.8x.
Is BLDR a buy based on valuation?
WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 45/100 reflects the combined read on growth, quality, and price. The profile skews cautious. Consider waiting for a better price or clearer operational improvement.
How does BLDR's valuation compare to its history?
On P/E, BLDR currently sits in the 72th percentile of its own 5Y range. That is above its long-run median relative to where it has traded over the period.
What is BLDR's Smart Value Score?
BLDR's Smart Value Score is 45/100. The Smart Value Score is a proprietary WallStSmart metric blending growth quality, financial health, and valuation attractiveness into a single 0-100 read. Scores above 75 are rare and indicate strong multi-factor alignment.