Generac vs Pentair
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KIRA’s take AI analyst
I put Generac and Pentair side by side, using each one’s latest annual report. Here is what stands out:
- Generac is the larger business, with $4.2B of revenue in fiscal 2025 against $4.2B for Pentair.
- Pentair grew revenue faster (2.3%, against −2.0%).
- Pentair kept more of each dollar of sales as operating profit (20.5% operating margin, against 6.9%).
- Pentair turned more of its sales into free cash flow (17.9% FCF margin, against 6.4%).
- Pentair earned a higher return on the capital invested in it (14.0%, against 6.5%).
- Investors pay more for each dollar of Generac’s earnings: a P/E of 43.5x against 13.5x for Pentair.
Who comes out ahead
Of the 11 measures where higher (or lower) is clearly better, how many each company leads.
Generac
GNRC
2/11
5-year growthShare count change
Pentair
PNR
9/11
Revenue growthGross marginOperating marginNet marginFCF marginReturn on capitalReturn on equityPiotroski F-scoreNet debt / EBITDA
Side by side
Best in the row
| Latest fiscal year | GNRC FY25 | PNR FY25 |
|---|---|---|
| Size | ||
| Market cap | $11.3B | $9.0B |
| Revenue | $4.2B | $4.2B |
| Free cash flow | $268M | $746M |
| Net income | $160M | $654M |
| Growth | ||
| Revenue growth | −2.0% | 2.3% |
| 5-year growth | 11.1% | 6.7% |
| Share count change | −1.8% | −1.0% |
| Profitability | ||
| Gross margin | 38.3% | 40.5% |
| Operating margin | 6.9% | 20.5% |
| Net margin | 3.8% | 15.7% |
| FCF margin | 6.4% | 17.9% |
| Return on capital | 6.5% | 14.0% |
| Return on equity | 6.2% | 17.6% |
| Balance sheet | ||
| Net debt | $1.0B | $1.5B |
| Net debt / EBITDA | 2.1x | 1.6x |
| Dividends and buybacks | $148M | $389M |
| Valuation & quality | ||
| P/E | 43.5x | 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.

