Mueller Industries vs Pentair
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KIRA’s take AI analyst
I put Mueller Industries and Pentair side by side, using each one’s latest annual report. Here is what stands out:
- Mueller Industries is the larger business, with $4.2B of revenue in fiscal 2025 against $4.2B for Pentair.
- Mueller Industries grew revenue faster (10.9%, against 2.3%).
- Mueller Industries kept more of each dollar of sales as operating profit (22.9% operating margin, against 20.5%).
- Pentair turned more of its sales into free cash flow (17.9% FCF margin, against 16.4%).
- Mueller Industries earned a higher return on the capital invested in it (40.3%, against 14.0%).
Who comes out ahead
Of the 10 measures where higher (or lower) is clearly better, how many each company leads.
Mueller Industries
MLI
8/10
Revenue growth5-year growthOperating marginNet marginReturn on capitalReturn on equityNet debt / EBITDAShare count change
Pentair
PNR
2/10
FCF marginPiotroski F-score
Side by side
Best in the row
| Latest fiscal year | MLI FY25 | PNR FY25 |
|---|---|---|
| Size | ||
| Market cap | $12.0B | $9.0B |
| Revenue | $4.2B | $4.2B |
| Free cash flow | $687M | $746M |
| Net income | $765M | $654M |
| Growth | ||
| Revenue growth | 10.9% | 2.3% |
| 5-year growth | 11.8% | 6.7% |
| Share count change | −2.2% | −1.0% |
| Profitability | ||
| Gross margin | — | 40.5% |
| Operating margin | 22.9% | 20.5% |
| Net margin | 18.3% | 15.7% |
| FCF margin | 16.4% | 17.9% |
| Return on capital | 40.3% | 14.0% |
| Return on equity | 25.6% | 17.6% |
| Balance sheet | ||
| Net debt | −$1.4B | $1.5B |
| Net debt / EBITDA | −1.4x | 1.6x |
| Dividends and buybacks | $353M | $389M |
| Valuation & quality | ||
| P/E | — | 13.5x |
| Piotroski F-score | 6 | 9 |
Ten years
Revenue
Operating margin
Free cash flow
Return on capital
Each company's latest fiscal year; fiscal years end in different months. The best value in each row is highlighted where higher (or lower) is clearly better. Not investment advice.

