Emcor Group Inc (EME) is slightly overvalued and Mastec Inc (MTZ) is slightly undervalued.
Against our estimates of intrinsic value, MTZ trades at the wider discount: a margin of safety of +8%, against -11% for EME.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 10.3% (average of 3 methods) values the shares at $680.05; the price of $756.50 is 11% above that value, and 72% of that value comes from beyond year five.
Leak Score 72/100 on 9 of 12 signals
Discounting its cash flows at 12.4% (average of 3 methods) values the shares at $240.05; the price of $221.69 is 8% below that value, and 67% of that value comes from beyond year five.
Leak Score 41/100 on 9 of 12 signals
| Metric | EME | MTZ |
|---|---|---|
| Verdict | Slightly overvalued | Slightly undervalued |
| Price | $756.50 | $221.69 |
| Intrinsic value | $680.05 | $240.05 |
| Margin of safety | -11% | +8% |
| Leak Score | 72/100 (9/12) | 41/100 (9/12) |
| Market cap | $33.4B | $17.8B |
| Revenue growth, 5 years | 14.1% | 17.7% |
| Operating margin | 9.6% | 5.2% |
| Net margin | 7.7% | 3.1% |
| Return on equity | 40.4% | 15.4% |
| Debt to equity | 0.13 | 0.93 |
| P/E | 23.5x | 35.3x |
| Forward P/E | 20.3x | 17.6x |
| P/B | 8.2x | 5.0x |
| Dividend yield | 0.2% | — |