Quanta Services Inc (PWR) is overvalued and Sterling Infrastructure Inc (STRL) is overvalued.
Both trade above our estimate of their intrinsic value. STRL is the closer of the two: -92%, against -210% for PWR.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 10.6% (average of 3 methods) values the shares at $207.13; the price of $642.63 is 210% above that value, and 72% of that value comes from beyond year five.
Leak Score 55/100 on 10 of 12 signals
Discounting its cash flows at 12.8% (average of 3 methods) values the shares at $269.07; the price of $516.57 is 92% above that value, and 65% of that value comes from beyond year five.
Leak Score 59/100 on 3 of 12 signals
| Metric | PWR | STRL |
|---|---|---|
| Verdict | Overvalued | Overvalued |
| Price | $642.63 | $516.57 |
| Intrinsic value | $207.13 | $269.07 |
| Margin of safety | -210% | -92% |
| Leak Score | 55/100 (10/12) | 59/100 (3/12) |
| Market cap | $96.6B | $15.8B |
| Revenue growth, 5 years | 20.5% | 11.8% |
| Operating margin | 6.4% | 18.3% |
| Net margin | 4.0% | 12.6% |
| Return on equity | 15.2% | 38.5% |
| Debt to equity | 0.69 | 0.25 |
| P/E | 73.6x | 37.2x |
| Forward P/E | 32.7x | 20.4x |
| P/B | 10.0x | 11.7x |
| Dividend yield | 0.1% | — |