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Based on our 6-factor quantitative model, COMFORT SYSTEMS USA INC (FIX) is the stronger stock with a composite score of 67.9/100 and a Buy rating, compared to MASTEC INC (MTZ) at 58.5/100 (Hold). FIX ranks #157 in our universe versus #831 for MTZ, giving it an edge of 9.4 points across quality, value, momentum, investment, stability, and short interest factors.
For the Quality factor — which measures profitability and business quality through metrics like ROE, gross margins, and capital efficiency — FIX leads at 80/100, while MTZ trails at 50/100 (FIX: 80/100, MTZ: 50/100). The 30-point gap indicates a meaningful difference in quality characteristics between these stocks.
On the Value factor, which evaluates whether a stock is cheap or expensive relative to its earnings, book value, and cash flows, these stocks are closely matched (MTZ: 44/100, FIX: 43/100). The narrow 1-point spread suggests similar value profiles, so this factor alone is unlikely to be a decisive differentiator.
For the Momentum factor — which captures price trends and institutional sentiment over the trailing 3-12 months — FIX leads at 97/100, while MTZ trails at 91/100 (FIX: 97/100, MTZ: 91/100). The 6-point gap indicates a meaningful difference in momentum characteristics between these stocks.
On the Investment factor, which assesses capital allocation quality including reinvestment rates and asset growth, these stocks are closely matched (MTZ: 34/100, FIX: 29/100). The narrow 4-point spread suggests similar investment profiles, so this factor alone is unlikely to be a decisive differentiator.
For the Stability factor — which measures financial health through leverage ratios and price volatility — MTZ leads at 55/100, while FIX trails at 32/100 (MTZ: 55/100, FIX: 32/100). The 23-point gap indicates a meaningful difference in stability characteristics between these stocks.
For the Short Interest factor — which tracks institutional bearish positioning and potential risk from elevated short selling — FIX leads at 75/100, while MTZ trails at 50/100 (FIX: 75/100, MTZ: 50/100). The 25-point gap indicates a meaningful difference in short interest characteristics between these stocks.
Based on our 6-factor model, COMFORT SYSTEMS USA INC (FIX) is utilizing a stronger overall profile than MTZ, with a Composite Score of 68 vs 59. FIX holds a moderate edge, particularly in Quality and Short Interest, though both stocks have merits.
| Overall Rating | ||
| Composite Score | 68 | 59 |
| Rank | #157 | #831 |
| Stars | 4 / 5 | 3 / 5 |
| Action | Buy | Hold |
| Factor Scores | ||
| Quality | 80 | 50 |
| Value | 43 | 44 |
| Momentum | 97 | 91 |
| Stability | 32 | 55 |
| Investment | 29 | 34 |
| Short Interest | 75 | 50 |
| Valuation | ||
| P/E Ratio | 24.96 | 25.21 |
| P/B Ratio | 13.04 | 5.40 |
| P/S Ratio | 2.97 | 1.06 |
| EV/EBITDA | 18.06 | 11.78 |
| Dividend Yield | 0.2% | 0.0% |
| Profitability | ||
| ROE | 52.7% | 21.9% |
| ROA | 19.4% | 6.3% |
| Gross Margin | 24.8% | 13.6% |
| Operating Margin | 15.5% | 6.4% |
| Net Margin | 11.9% | 4.2% |
| Growth & Risk | ||
| Revenue Growth | 35.2% | 22.0% |
| Debt/Equity | 6.00 | 76.00 |
| Beta | 1.68 | 1.52 |
| Market | ||
| Market Cap | $29.11B | $16.79B |
Based on our 6-factor quantitative model, FIX currently has the higher composite score (67.9/100, Buy) and ranks #157 in our universe. However, the "better" stock depends on your investment goals, risk tolerance, and time horizon. We recommend reviewing the full factor breakdown above before making a decision.
Our comparison analyzes six quantitative factors: Quality (profitability and business strength, 30% weight), Momentum (price trends, 25%), Value (valuation attractiveness, 15%), Investment (capital allocation, 10%), Stability (financial health, 10%), and Short Interest (institutional positioning, 10%). Each factor is scored 0-100 and combined into a composite score.
MTZ has the higher value score at 44/100 compared to FIX at 43/100. A higher value score indicates the stock trades at a more attractive valuation relative to its earnings, book value, and cash flows.
Our stock rankings and comparisons are updated daily using the latest available market data, financial statements, and price information. Factor scores reflect the most recent quarterly filings and trailing price data.