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Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). MasTec's share price for the quarter that ended in Jun. 2026 was €327.4. MasTec's Shares Outstanding (EOP) for the quarter that ended in Jun. 2026 was 79 Mil. Therefore, MasTec's market cap for the quarter that ended in Jun. 2026 was €25,893 Mil.
MasTec's quarterly market cap
increased
from Dec. 2025 (€14,912 Mil) to Mar. 2026 (€21,650 Mil) and
increased
from Mar. 2026 (€21,650 Mil) to Jun. 2026 (€25,893 Mil).
MasTec's annual market cap
stayed the same
from Dec. 2023 (€0 Mil) to Dec. 2024 (€0 Mil) but then
increased
from Dec. 2024 (€0 Mil) to Dec. 2025 (€14,912 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. MasTec's Enterprise Value for Today is €20,974 Mil.
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
MasTec Market Cap Related Terms
MasTec Market Cap Historical Data
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The historical data trend for MasTec's Market Cap can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Engineering & Construction subindustry, MasTec's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
MasTec Market Cap vs Construction Industry
For the Construction industry and Industrials sector, MasTec's Market Cap distribution charts can be found below:
* The bar in red indicates where MasTec's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
MasTec's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
MasTec (MIL:1MTZ) has a Market Cap of €18,336 Mil as of Aug. 01, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on MasTec and its competitors. According to the industry distribution chart, MasTec ranks #17 out of 1809 companies in the Construction industry, placing it in the top 0.90000000000001%.
Is MasTec's Market Cap too high?
MasTec's current Market Cap is €18,336 Mil. Based on the distribution chart, MasTec ranks #17 out of 1809 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, MasTec has a GF Score™ of 85/100, reflecting its overall financial health beyond just this single metric.
How does MasTec's Market Cap compare to EME and STRL?
According to the Construction industry distribution chart, MasTec ranks #17 out of 1809 companies for Market Cap. This places MasTec in the top 1% of its industry — outperforming the majority of peers. The industry median Market Cap is 117.43. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Construction company?
The median Market Cap among Construction companies is 117.43, based on 1,809 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on MasTec and its competitors. For the Construction industry, the median Market Cap is 117.43 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. MasTec's current Market Cap is €18,336 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is MasTec stock overvalued right now?
MasTec (MIL:1MTZ) has a current Market Cap of €18,336 Mil. The stock's GF Value™ is €233.35, compared to a current price of €336.30 — trading 44.1% above its estimated fair value. The current Market Cap is €18,336 Mil. MasTec's overall GF Score™ is 85/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For MasTec (MIL:1MTZ), the current Market Cap is €18,336 Mil as of Aug. 01, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is MasTec (MIL:1MTZ) Overvalued in 2026?
Based on GuruFocus' analysis, MasTec stock appears to be overvalued.
The current stock price of €336.30 is trading 44.1% above its estimated GF Value™ of €233.35.
Key valuation signals for MIL:1MTZ:
Market Cap: €18,336 Mil
GF Value™: €233.35 vs. price of €336.30 (44.1% above fair value)
No single metric tells the full story. See the MIL:1MTZ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
MasTec is a leading infrastructure construction company operating mainly in North America across a range of industries. Its primary activities include engineering, building, installing, maintaining, and upgrading communications, oil and gas, utility, renewable energy, and other infrastructure. MasTec reports its results under five segments: communications; clean energy and infrastructure; pipeline infrastructure; power delivery; and other.
85GF Score
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Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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