Sifting through countless of stocks in the Construction & Engineering industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Arcosa, Inc. or AECOM because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Arcosa, Inc. and AECOM compare based on key financial metrics to determine which better meets your investment needs.

About Arcosa, Inc. and AECOM

Arcosa, Inc., together with its subsidiaries, provides infrastructure-related products and solutions for the construction, engineered structures, and transportation markets in the United States. The company operates through three segments: Construction Products, Engineered Structures, and Transportation Products. The Construction Products segment offers natural and recycled aggregates; specialty materials; and construction site support equipment, including trench shields and shoring products for residential and non-residential construction, and specialty and other products, as well as for infrastructure construction. The Engineered Structures segment offers utility structures, wind towers, traffic and lighting structures, and telecommunication structures for electricity transmission and distribution, wind power generation, highway road construction, and wireless communication markets. This segment also sells its products to contractors and distributors serving state Departments of Transportation and state and municipality agencies. The Transportation Products segment offers inland barges, fiberglass barge covers, winches, marine hardware, and other transportation and industrial equipment to the commercial marine transportation companies, lessors, and industrial shippers. Arcosa, Inc. was incorporated in 2018 and is headquartered in Dallas, Texas.

AECOM, together with its subsidiaries, provides professional infrastructure consulting services for governments, businesses, and organizations internationally. The company operates in three segments: Americas, International, and AECOM Capital. The company offers advisory, planning, consulting, architectural and engineering design, construction and program management services, and investment and development services to public and private clients in major end markets such as transportation, facilities, water, environmental, and energy. It is also involved in the investment and development of real estate projects. The company was formerly known as AECOM Technology Corporation and changed its name to AECOM in January 2015. AECOM was incorporated in 1980 and is headquartered in Dallas, Texas.

Latest Construction & Engineering and Arcosa, Inc., AECOM Stock News

As of July 31, 2026, Arcosa, Inc. had a $7.1 billion market capitalization, compared to the Construction & Engineering median of $2.8 million. Arcosa, Inc.’s stock is up 36.6% in 2026, up 0.1% in the previous five trading days and up 66.3% in the past year.

Currently, Arcosa, Inc.’s price-earnings ratio is 32.5. Arcosa, Inc.’s trailing 12-month revenue is $2.9 billion with a 7.7% net profit margin. Year-over-year quarterly sales growth most recently was 4.4%. Analysts expect adjusted earnings to reach $4.384 per share for the current fiscal year. Arcosa, Inc. currently has a 0.1% dividend yield.

As of July 31, 2026, AECOM had a $9.3 billion market cap, putting it in the 76th percentile of all stocks. AECOM’s stock is down 24.1% in 2026, up 2.6% in the previous five trading days and down 35.69% in the past year.

Currently, AECOM’s price-earnings ratio is 15.1. AECOM’s trailing 12-month revenue is $16.0 billion with a 3.2% net profit margin. Year-over-year quarterly sales growth most recently was 0.8%. Analysts expect adjusted earnings to reach $5.971 per share for the current fiscal year. AECOM currently has a 1.7% dividend yield.

How We Compare Arcosa, Inc. and AECOM Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Arcosa, Inc. and AECOM’s stock grades to see how they measure up against one another.

Learn more about A+ Investor here!

Sign Up to Receive a Free Special Report Showing How A+ Grades Can Help You Make Smarter Investment Decisions

Arcosa, Inc. and AECOM Stock Value Grades

Company	Ticker	Value
Arcosa, Inc.	ACA	D
AECOM	ACM	C

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Arcosa, Inc. has a Value Score of 32, which is Expensive. AECOM has a Value Score of 60, which is Average.

The Value Stock Winner: No Clear Winner

Neither Arcosa, Inc. or AECOM has a high enough value grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolio. It’s important to look at a wide range of financial metrics in order to determine if Arcosa, Inc. or AECOM is the better investment when it comes to value.

Arcosa, Inc. and AECOM Growth Grades

Company	Ticker	Growth
Arcosa, Inc.	ACA	A
AECOM	ACM	B

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Arcosa, Inc. has a Growth Score of 100, which is Very Strong. AECOM has a Growth Score of 73, which is Strong.

The Growth Grade Winner: Arcosa, Inc.

As you can clearly see from the Growth Grade breakdown above, Arcosa, Inc. has a more attractive growth grade than AECOM. For investors who focus solely on how a company is growing relative to other companies in the same industry, Arcosa, Inc. could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Arcosa, Inc. and AECOM’s Momentum Grades

Company	Ticker	Momentum
Arcosa, Inc.	ACA	A
AECOM	ACM	F

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Arcosa, Inc. has a Momentum Score of 83, which is Very Strong. AECOM has a Momentum Score of 18, which is Very Weak.

The Momentum Grade Winner: Arcosa, Inc.

As you can clearly see from the Momentum Grade breakdown above, Arcosa, Inc. is considered to have stronger momentum compared to AECOM. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Arcosa, Inc. could be a good stock to invest in. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Other Arcosa, Inc. and AECOM Grades

In addition to Growth, Value and Momentum, A+ Investor also provides grades for Estimate Revisions and Quality.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Arcosa, Inc. and AECOM pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Arcosa, Inc. or AECOM Stock?

Overall, Arcosa, Inc. stock has a Value Score of 32, Growth Score of 100 and Momentum Score of 83.

AECOM stock has a Value Score of 60, Growth Score of 73 and Momentum Score of 18.

Comparing Arcosa, Inc. and AECOM’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.