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MasTec market cap MTZ

Share price times shares outstanding: what the whole company sells for, since 2011.

Today, Oct 23, 2026
$13.7B
Highest close in our data
$33B
May 2026

MasTec is worth $13.7B at the close on Oct 23, 2026, at $171.05 a share.

That is down 18% over the last year and up 107% over five years.

Its highest close in our data was $33B in May 2026.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$13.7B$13.7B$33B−22%
2025$17.7B$8.4B$17.7B+65%
2024$10.8B$5B$11.5B+80%
2023$6B$3.9B$9.3B−11%
2022$6.7B$4.8B$7.5B−3%
2021$6.9B$5.6B$8.9B+36%
2020$5B$2B$5.2B+3%
2019$4.9B$3.3B$5.5B+54%
2018$3.2B$3B$4.4B−22%
2017$4.1B$3B$4.2B+29%
2016$3.2B$1.1B$3.3B+127%
2015$1.4B$1.2B$1.8B−24%
2014$1.8B$1.6B$3.3B−27%
2013$2.5B$2B$2.7B+34%
2012$1.9B$1.2B$1.9B+27%
2011$1.5B$1.3B$1.9Bn/a

Against its peers

Companies in Engineering & Construction nearest MasTec's size, closest first, today.

CompanyMarket cap
MTZMasTec$13.7B
JJacobs Solutions$17B
STRLSterling Infrastructure$10.9B
TTEKTetra Tech$9.5B
IESCIES$8.5B
ACMAecom$7.8B
DYDycom Industries$6.8B
EMEEMCOR$28.6B
KBRKBR$4.9B
ROADConstruction Partners$4.7B
AGXArgan$4.6B
Peer median$8.1B

What the market cap tells you

Share price times shares outstanding: what the whole company sells for today.

Size, not quality. Large caps move slower and are covered more. That is all it tells you.

More on MasTec

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.