WSO vs BLDR vs IBP vs MSM vs FAST

For growth investors, Fastenal Company (FAST) is the stronger pick with 8.

7% revenue growth year-over-year, versus -7. 4% for Builders FirstSource, Inc. (BLDR). Builders FirstSource, Inc. (BLDR) offers the better valuation at 20. 4x trailing P/E (14. 1x 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. 4x versus Fastenal Company at 40. 7x. On forward P/E, Builders FirstSource, Inc. is actually cheaper at 14. 1x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Installed Building Products, Inc. wins at 0. 80x versus Fastenal Company's 4. 62x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Fastenal Company (FAST) delivered a total return of +81.

3%, compared to +28. 7% for MSC Industrial Direct Co. , Inc. (MSM). Over 10 years, the gap is even starker: IBP returned +650. 1% versus MSM's +87. 3%. 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), Fastenal Company (FAST) is the lower-risk stock at 0.

69β versus Builders FirstSource, Inc. 's 1. 65β — meaning BLDR is approximately 138% more volatile than FAST relative to the S&P 500. On balance sheet safety, Fastenal Company (FAST) carries a lower debt/equity ratio of 11% versus 148% for Installed Building Products, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Fastenal Company (FAST) is pulling ahead at 8.

7% versus -7. 4% for Builders FirstSource, Inc. (BLDR). On earnings-per-share growth, the picture is similar: Fastenal Company grew EPS 9. 0% year-over-year, compared to -57. 1% for Builders FirstSource, Inc.. Over a 3-year CAGR, FAST leads at 5. 5% 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.

Fastenal Company (FAST) is the more profitable company, earning 15.

3% net margin versus 2. 9% for Builders FirstSource, Inc. — meaning it keeps 15. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: FAST leads at 20. 2% versus 5. 2% for BLDR. At the gross margin level — before operating expenses — FAST leads at 45. 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, Installed Building Products, Inc. (IBP) is the more undervalued stock at a PEG of 0. 80x versus Fastenal Company's 4. 62x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Builders FirstSource, Inc. (BLDR) trades at 14. 1x forward P/E versus 35. 9x for Fastenal Company — 21. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BLDR: 38. 3% to $109. 92.

In this comparison, MSM (3.

3% yield), WSO (2. 9% yield), FAST (2. 0% yield), IBP (1. 5% yield) pay a dividend. BLDR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Fastenal Company (FAST) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

69), 2. 0% yield, +338. 1% 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 (FAST: +338. 1%, BLDR: +614. 8%), 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.

These companies operate in different sectors (WSO (Industrials) and BLDR (Industrials) and IBP (Consumer Cyclical) and MSM (Industrials) and FAST (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: WSO is a mid-cap quality compounder stock; BLDR is a small-cap quality compounder stock; IBP is a small-cap quality compounder stock; MSM is a small-cap income-oriented stock; FAST is a mid-cap quality compounder stock. WSO, IBP, MSM, FAST pay 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.