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FIX vs MTZ
Which Stock Would AI Choose? Comfort Systems USA (FIX) vs. MasTec (MTZ) Stock Comparison
Key Takeaways
- FIX has posted accelerating revenue growth and record backlog, with the technology (data center) end market now driving a substantial share of sales.
- MTZ offers broader diversification across communications, clean energy, power delivery, and pipeline infrastructure, with an 18-month backlog that has grown sharply year over year.
- Both companies are leveraged to AI-driven data center and energy transition spending, but their margin profiles, balance sheets, and valuation multiples differ meaningfully.
- FIX currently demonstrates stronger profitability and a lighter debt load, while MTZ shows faster top-line momentum and a larger absolute backlog.
- Relative performance has favored FIX on a trailing basis, though MTZ has outperformed its industry and the broader market in recent months.
Introduction
Investors tracking the infrastructure and construction complex frequently weigh FIX (Comfort Systems USA) against MTZ (MasTec) as two distinct ways to gain exposure to data center buildouts, grid modernization, and the broader energy transition. While both operate as specialty contractors serving high-growth end markets, their business models, margin structures, and risk profiles diverge considerably. This stock comparison examines recent performance, growth drivers, and market positioning to help traders and investors evaluate which profile better aligns with their objectives in the current environment.
FIX Overview and Recent Performance
Comfort Systems USA is a leading provider of mechanical and electrical installation, maintenance, and repair services across commercial, industrial, and institutional facilities. In recent weeks, FIX has benefited from a pronounced rerating as investors reclassify the company from a traditional contractor into a mission-critical "AI infrastructure" play. Its most recent quarterly results showed revenue rising roughly 42% year over year, with adjusted earnings per share (EPS) more than doubling, driven primarily by data center cooling and modular construction demand.
The technology end market now accounts for a significant and growing portion of revenue, up sharply from prior-year levels, while backlog has roughly doubled to nearly $12 billion. Gross margin has expanded to a record level above 25%, and management has raised its dividend while generating more than $1 billion in annual operating cash flow. Sentiment has been supported by a strong balance sheet, with cash well in excess of debt, although the stock's elevated valuation reflects a rich price-to-earnings (P/E) multiple and rising concentration in AI-linked demand.
MTZ Overview and Recent Performance
MasTec is a diversified infrastructure engineering and construction company operating across four segments: Communications, Clean Energy and Infrastructure, Power Delivery, and Pipeline Infrastructure. Recent market activity has favored MTZ, which gained meaningfully over the trailing three months and outperformed its heavy-construction industry group and the broader market. Its latest quarterly report showed revenue rising roughly 16% year over year, with adjusted EPS up about 44%, and adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization) margin improving modestly.
The company entered the new year with an 18-month backlog of nearly $19 billion, up roughly 33% year over year, with particularly strong growth in pipeline and clean energy awards. Management has guided for double-digit revenue and EBITDA growth in the current year, supported by grid upgrades, renewable installations, broadband deployment, and early data-center-related contract wins. Offsetting these tailwinds are a thinner net margin, higher leverage, and project-execution risks common to large fixed-price infrastructure work.
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Head-to-Head Comparison
The clearest contrast between the two names lies in focus versus diversification. FIX has concentrated its growth in mechanical and electrical work tied to data centers and advanced manufacturing, producing a higher-margin, higher-multiple profile but greater exposure to a single demand cycle. MTZ spreads its revenue across four distinct infrastructure verticals, which can smooth cyclical swings but also dilutes margins and adds balance-sheet leverage.
On growth and momentum, MTZ has delivered strong recent relative performance and a larger absolute backlog, while FIX has shown faster same-store growth and superior profitability. Risk factors also differ: FIX faces valuation and technology-concentration risk, whereas MTZ carries execution risk on large fixed-price projects, thinner margins, and a higher debt load. From a market positioning standpoint, FIX leans heavily on AI infrastructure spending, while MTZ captures a broader energy transition and connectivity tailwind.
Tickeron AI Verdict
Based on observable factors such as trend consistency, margin stability, balance-sheet strength, and catalyst visibility, Tickeron's AI would likely favor FIX in the current environment. The company combines stronger and expanding margins, a lighter debt burden, robust cash generation, and a backlog that provides multi-year visibility into high-demand data center work. While MTZ offers compelling diversification and an improving earnings trajectory, its thinner margins and higher leverage introduce greater variability. This assessment is probabilistic and based on relative positioning rather than a definitive forecast.
Disclaimer
The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.
To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is FIX is a StrongBuy and MTZ is a Hold.
FIX's RSI Indicator climbs out of oversold territory
The RSI Indicator for FIX moved out of oversold territory on October 27, 2026. This could be a sign that the stock is shifting from a downward trend to an upward trend. Traders may want to buy the stock or call options. The A.I.dvisor looked at 15 similar instances when the indicator left oversold territory. In 14 of the 15 cases the stock moved higher. This puts the odds of a move higher at 90%.
Technical Analysis (Indicators)
Bullish Trend Analysis
The Stochastic Oscillator suggests the stock price trend may be in a reversal from a downward trend to an upward trend. 45 of 49 cases where FIX's Stochastic Oscillator exited the oversold zone resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 90%.
Following a +8.16% 3-day Advance, the price is estimated to grow further. Considering data from situations where FIX advanced for three days, in 287 of 359 cases, the price rose further within the following month. The odds of a continued upward trend are 80%.
FIX may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
The Aroon Indicator entered an Uptrend today. In 278 of 325 cases where FIX Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are 86%.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 12, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on FIX as a result. In 53 of 80 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 66%.
The Moving Average Convergence Divergence Histogram (MACD) for FIX turned negative on October 13, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 48 similar instances when the indicator turned negative. In 33 of the 48 cases the stock turned lower in the days that followed. This puts the odds of success at 69%.
FIX moved below its 50-day moving average on October 12, 2026 date and that indicates a change from an upward trend to a downward trend.
The 10-day moving average for FIX crossed bearishly below the 50-day moving average on October 16, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 8 of 13 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are 62%.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where FIX declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 66%.
Fundamental Analysis (Ratings)
The Tickeron SMR rating for this company is 19 (best 1 - 100 worst), indicating very strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Profit vs. Risk Rating rating for this company is 35 (best 1 - 100 worst), indicating well-balanced risk and returns. The average Profit vs. Risk Rating rating for the industry is 76, placing this stock slightly better than average.
The Tickeron Price Growth Rating for this company is 64 (best 1 - 100 worst), indicating steady price growth. FIX’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Valuation Rating of 73 (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (13.484) is normal, around the industry mean (15.247). P/E Ratio (30.294) is within average values for comparable stocks, (166.505). Projected Growth (PEG Ratio) (0.554) is also within normal values, averaging (3.522). Dividend Yield (0.003) settles around the average of (0.198) among similar stocks. P/S Ratio (4.990) is also within normal values, averaging (2.856).
The Tickeron PE Growth Rating for this company is 76 (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
MTZ's MACD Histogram just turned positive
The Moving Average Convergence Divergence (MACD) for MTZ turned positive on October 30, 2026. Looking at past instances where MTZ's MACD turned positive, the stock continued to rise in 41 of 50 cases over the following month. The odds of a continued upward trend are 82%.
Technical Analysis (Indicators)
Bullish Trend Analysis
The RSI Indicator points to a transition from a downward trend to an upward trend -- in cases where MTZ's RSI Indicator exited the oversold zone, 19 of 25 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 76%.
The Stochastic Oscillator suggests the stock price trend may be in a reversal from a downward trend to an upward trend. 40 of 51 cases where MTZ's Stochastic Oscillator exited the oversold zone resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 78%.
Following a +4.87% 3-day Advance, the price is estimated to grow further. Considering data from situations where MTZ advanced for three days, in 274 of 347 cases, the price rose further within the following month. The odds of a continued upward trend are 79%.
MTZ may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 13, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on MTZ as a result. In 51 of 75 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 68%.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where MTZ declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 77%.
The Aroon Indicator for MTZ entered a downward trend on October 22, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Fundamental Analysis (Ratings)
The Tickeron Seasonality Score of 50 (best 1 - 100 worst) indicates that the company is fair valued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron SMR rating for this company is 55 (best 1 - 100 worst), indicating strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Valuation Rating of 56 (best 1 - 100 worst) indicates that the company is fair valued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (4.297) is normal, around the industry mean (15.247). P/E Ratio (29.347) is within average values for comparable stocks, (166.505). Projected Growth (PEG Ratio) (0.616) is also within normal values, averaging (3.522). Dividend Yield (0.000) settles around the average of (0.198) among similar stocks. P/S Ratio (1.103) is also within normal values, averaging (2.856).
The Tickeron Profit vs. Risk Rating rating for this company is 74 (best 1 - 100 worst), indicating that the returns do not compensate for the risks. MTZ’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 76, placing this stock better than average.
The Tickeron Price Growth Rating for this company is 80 (best 1 - 100 worst), indicating slightly worse than average price growth. MTZ’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron PE Growth Rating for this company is 84 (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
FIX | MTZ | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 50 | 50 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 73 Overvalued | 56 Fair valued | |
PROFIT vs RISK RATING 1..100 | 35 | 74 | |
SMR RATING 1..100 | 19 | 55 | |
PRICE GROWTH RATING 1..100 | 64 | 80 | |
P/E GROWTH RATING 1..100 | 76 | 84 | |
SEASONALITY SCORE 1..100 | 55 | 50 |
Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.
MTZ's Valuation (56) in the Engineering And Construction industry is in the same range as FIX (73). This means that MTZ’s stock grew similarly to FIX’s over the last 12 months.
FIX's Profit vs Risk Rating (35) in the Engineering And Construction industry is somewhat better than the same rating for MTZ (74). This means that FIX’s stock grew somewhat faster than MTZ’s over the last 12 months.
FIX's SMR Rating (19) in the Engineering And Construction industry is somewhat better than the same rating for MTZ (55). This means that FIX’s stock grew somewhat faster than MTZ’s over the last 12 months.
FIX's Price Growth Rating (64) in the Engineering And Construction industry is in the same range as MTZ (80). This means that FIX’s stock grew similarly to MTZ’s over the last 12 months.
FIX's P/E Growth Rating (76) in the Engineering And Construction industry is in the same range as MTZ (84). This means that FIX’s stock grew similarly to MTZ’s over the last 12 months.
| FIX | MTZ | |
|---|---|---|
| RSI ODDS (%) | 3 days ago 90% | 3 days ago 76% |
| Stochastic ODDS (%) | 3 days ago 90% | 3 days ago 78% |
| Momentum ODDS (%) | 3 days ago 66% | 3 days ago 68% |
| MACD ODDS (%) | 3 days ago 69% | 3 days ago 82% |
| TrendWeek ODDS (%) | 3 days ago 83% | 3 days ago 78% |
| TrendMonth ODDS (%) | 3 days ago 71% | 3 days ago 75% |
| Advances ODDS (%) | 5 days ago 80% | 5 days ago 79% |
| Declines ODDS (%) | 3 days ago 66% | 10 days ago 77% |
| BollingerBands ODDS (%) | 3 days ago 90% | 3 days ago 74% |
| Aroon ODDS (%) | 3 days ago 86% | 3 days ago 75% |
Long-Term Analysis
It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is overvalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).
FIX’s FA Score shows that 1 FA rating(s) are green while MTZ’s FA Score has 0 green FA rating(s).
- FIX’s FA Score: 1 green, 4 red.
- MTZ’s FA Score: 0 green, 5 red.
Short-Term Analysis
It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.
If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.
FIX’s TA Score shows that 5 TA indicator(s) are bullish while MTZ’s TA Score has 5 bullish TA indicator(s).
- FIX’s TA Score: 5 bullish, 5 bearish.
- MTZ’s TA Score: 5 bullish, 3 bearish.
Price Growth
FIX (@Engineering & Construction) experienced а +6.19% price change this week, while MTZ (@Engineering & Construction) price change was +8.78% for the same time period.
The average weekly price growth across all stocks in the @Engineering & Construction industry was +8.42%. For the same industry, the average monthly price growth was -7.92%, and the average quarterly price growth was -29.31%.
Reported Earning Dates
FIX is expected to report earnings on Feb 25, 2027.
MTZ is expected to report earnings on Feb 25, 2027.
Industries' Descriptions
@Engineering & Construction (+8.42% weekly)Engineering & Construction includes companies that engage in non-residential construction and contract services, including ventilation, heating and air conditioning (HVAC) services. The level/value of construction & engineering activity is one of the potentially relevant indicators of the health of businesses, and hence of the overall economy. Some of the large-cap U.S. companies in this industry include Jacobs Engineering Group Inc,, AECOM and Quanta Services, Inc.
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MTZ and
Correlation & Price change
A.I.dvisor indicates that over the last year, MTZ has been closely correlated with PWR. These tickers have moved in lockstep 71% of the time. This A.I.-generated data suggests there is a high statistical probability that if MTZ jumps, then PWR could also see price increases.