WSO vs BLDR

For growth investors, Watsco, Inc.

(WSO) is the stronger pick with -5. 0% revenue growth year-over-year, versus -7. 4% for Builders FirstSource, Inc. (BLDR). Builders FirstSource, Inc. (BLDR) offers the better valuation at 20. 6x trailing P/E (14. 2x forward), making it the more compelling value choice. Analysts rate Builders FirstSource, Inc. (BLDR) a "Buy" — based on 43 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Builders FirstSource, Inc.

(BLDR) is the cheapest at 20. 6x versus Watsco, Inc. at 35. 3x. On forward P/E, Builders FirstSource, Inc. is actually cheaper at 14. 2x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Builders FirstSource, Inc. wins at 1. 79x versus Watsco, Inc. 's 2. 90x — a reasonable growth-adjusted valuation.

Over the past 5 years, Watsco, Inc.

(WSO) delivered a total return of +64. 1%, compared to +53. 9% for Builders FirstSource, Inc. (BLDR). Over 10 years, the gap is even starker: BLDR returned +636. 9% versus WSO's +281. 6%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Watsco, Inc.

(WSO) is the lower-risk stock at 1. 10β versus Builders FirstSource, Inc. 's 1. 65β — meaning BLDR is approximately 50% more volatile than WSO relative to the S&P 500. On balance sheet safety, Watsco, Inc. (WSO) carries a lower debt/equity ratio of 15% versus 130% for Builders FirstSource, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Watsco, Inc.

(WSO) is pulling ahead at -5. 0% versus -7. 4% for Builders FirstSource, Inc. (BLDR). On earnings-per-share growth, the picture is similar: Watsco, Inc. grew EPS -7. 9% year-over-year, compared to -57. 1% for Builders FirstSource, Inc.. Over a 3-year CAGR, WSO leads at -0. 2% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Watsco, Inc.

(WSO) is the more profitable company, earning 6. 9% net margin versus 2. 9% for Builders FirstSource, Inc. — meaning it keeps 6. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WSO leads at 9. 6% versus 5. 2% for BLDR. At the gross margin level — before operating expenses — BLDR leads at 29. 0%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Builders FirstSource, Inc. (BLDR) is the more undervalued stock at a PEG of 1. 79x versus Watsco, Inc. 's 2. 90x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Builders FirstSource, Inc. (BLDR) trades at 14. 2x forward P/E versus 34. 3x for Watsco, Inc. — 20. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BLDR: 37. 3% to $109. 92.

In this comparison, WSO (2.

9% yield) pays a dividend. BLDR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Watsco, Inc.

(WSO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 10), 2. 9% yield, +281. 6% 10Y return). Builders FirstSource, Inc. (BLDR) carries a higher beta of 1. 65 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (WSO: +281. 6%, BLDR: +636. 9%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

WSO pays a dividend while BLDR does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.