How Does Power Solutions International Stock Compare With Peers?
Power Solutions International (PSIX) stock has significantly outperformed most peers over the past year. Driven by strong data center demand, it boasts exceptional LTM revenue growth and an attractive PE valuation. However, despite competitive operating margins, a recent auditor’s “going concern” flag and lagging free cash flow generation raise significant questions about its balance sheet resilience and sustained profitability amidst rapid scale-up.
- PSIX’s 15.2% operating margin, strong but below DE’s 18.0%, indicates potential cost structure differences or competitive pressures.
- PSIX’s 51.8% revenue growth, outpacing all peers, signals strong market share gains or high demand in its power generation sector.
- PSIX’s 91.5% stock gain and 11.2 PE, despite trailing CAT, may indicate market undervaluation or sector-specific growth skepticism.
Here’s how Power Solutions International stacks up across size, valuation, and profitability versus key peers.
| PSIX | CMI | CAT | GNRC | WAB | DE | |
|---|---|---|---|---|---|---|
| Market Cap ($ Bil) | 1.3 | 76.9 | 329.8 | 12.4 | 41.9 | 160.6 |
| Revenue ($ Bil) | 0.7 | 33.7 | 67.6 | 4.2 | 11.2 | 45.7 |
| PE Ratio | 11.2 | 27.0 | 37.1 | 77.7 | 35.8 | 33.4 |
| LTM Revenue Growth | 51.8% | -1.3% | 4.3% | -2.0% | 7.5% | -2.5% |
| LTM Operating Margin | 15.2% | 11.5% | 16.5% | 6.9% | 16.1% | 18.0% |
| LTM FCF Margin | 2.0% | 7.1% | 11.0% | 6.4% | 13.4% | 7.8% |
| 12M Market Return | 91.5% | 72.0% | 111.1% | 61.9% | 40.5% | 26.6% |
For more details on Power Solutions International, read Buy or Sell PSIX Stock. Below we compare PSIX’s growth, margin, and valuation with peers across years

Revenue Growth Comparison
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| LTM | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
| PSIX | 51.8% | 51.8% | 3.7% | -4.6% |
| CMI | -1.3% | -1.3% | 0.1% | 21.3% |
| CAT | 4.3% | 4.3% | -3.4% | 12.8% |
| GNRC | -2.0% | -2.0% | 6.8% | -11.9% |
| WAB | 7.5% | 7.5% | 7.3% | 15.7% |
| DE | -2.5% | -11.6% | -16.1% | 17.5% |
Operating Margin Comparison
| LTM | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
| PSIX | 15.2% | 15.2% | 17.2% | 9.6% |
| CMI | 11.5% | 11.5% | 9.9% | 3.8% |
| CAT | 16.5% | 16.5% | 20.2% | 19.3% |
| GNRC | 6.9% | 6.9% | 12.5% | 9.6% |
| WAB | 16.1% | 16.1% | 15.5% | 13.1% |
| DE | 18.0% | 18.8% | 22.6% | 24.2% |
PE Ratio Comparison
| LTM | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
| PSIX | 11.2 | 11.5 | 9.9 | 3.4 |
| CMI | 27.0 | 24.8 | 12.2 | 46.2 |
| CAT | 37.1 | 30.3 | 16.4 | 14.6 |
| GNRC | 77.7 | 50.0 | 28.4 | 39.0 |
| WAB | 35.8 | 31.1 | 31.3 | 27.8 |
| DE | 33.4 | 25.1 | 16.5 | 11.5 |
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