MLI vs WCC vs GWW vs MWA vs MSM

For growth investors, Mueller Industries, Inc.

(MLI) is the stronger pick with 10. 9% revenue growth year-over-year, versus -1. 3% for MSC Industrial Direct Co. , Inc. (MSM). Mueller Industries, Inc. (MLI) offers the better valuation at 20. 5x trailing P/E (17. 4x forward), making it the more compelling value choice. Analysts rate WESCO International, Inc. (WCC) a "Buy" — based on 33 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, Mueller Industries, Inc.

(MLI) is the cheapest at 20. 5x versus W. W. Grainger, Inc. at 34. 9x. On forward P/E, Mueller Industries, Inc. is actually cheaper at 17. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: WESCO International, Inc. wins at 0. 41x versus W. W. Grainger, Inc. 's 1. 24x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Mueller Industries, Inc.

(MLI) delivered a total return of +513. 9%, compared to +28. 2% for MSC Industrial Direct Co. , Inc. (MSM). Over 10 years, the gap is even starker: MLI returned +867. 6% 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), MSC Industrial Direct Co.

, Inc. (MSM) is the lower-risk stock at 0. 85β versus WESCO International, Inc. 's 1. 80β — meaning WCC is approximately 113% more volatile than MSM relative to the S&P 500. On balance sheet safety, Mueller Industries, Inc. (MLI) carries a lower debt/equity ratio of 2% versus 149% for WESCO International, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Mueller Industries, Inc.

(MLI) is pulling ahead at 10. 9% versus -1. 3% for MSC Industrial Direct Co. , Inc. (MSM). On earnings-per-share growth, the picture is similar: Mueller Water Products, Inc. grew EPS 64. 9% year-over-year, compared to -22. 1% for MSC Industrial Direct Co. , Inc.. Over a 3-year CAGR, GWW leads at 5. 6% 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.

Mueller Industries, Inc.

(MLI) is the more profitable company, earning 18. 3% net margin versus 2. 7% for WESCO International, Inc. — meaning it keeps 18. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MLI leads at 21. 4% versus 5. 2% for WCC. At the gross margin level — before operating expenses — MSM leads at 40. 8%, 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, WESCO International, Inc. (WCC) is the more undervalued stock at a PEG of 0. 41x versus W. W. Grainger, Inc. 's 1. 24x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Mueller Industries, Inc. (MLI) trades at 17. 4x forward P/E versus 27. 7x for W. W. Grainger, Inc. — 10. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MWA: 22. 3% to $32. 25.

All stocks in this comparison pay dividends.

MSC Industrial Direct Co. , Inc. (MSM) offers the highest yield at 3. 3%, versus 0. 5% for WESCO International, Inc. (WCC).

For long-horizon retirement investors, Mueller Industries, Inc.

(MLI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 12), 0. 7% yield, +867. 6% 10Y return). WESCO International, Inc. (WCC) carries a higher beta of 1. 80 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MLI: +867. 6%, WCC: +545. 6%), 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.

In terms of investment character: MLI is a mid-cap quality compounder stock; WCC is a mid-cap quality compounder stock; GWW is a mid-cap quality compounder stock; MWA is a small-cap quality compounder stock; MSM is a small-cap income-oriented stock. 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.