Sifting through countless of stocks in the Machinery 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 Alamo Group Inc. or Federal Signal Corporation 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 Alamo Group Inc. and Federal Signal Corporation compare based on key financial metrics to determine which better meets your investment needs.

About Alamo Group Inc. and Federal Signal Corporation

Alamo Group Inc. manufactures and sells industrial and vegetation management equipment for governmental, industrial, and agricultural uses worldwide. It operates in two segments, Vegetation Management and Industrial Equipment. The Vegetation Management segment offers tractor powered equipment such as rotary, finishing, flail, and disc mowers; rotary cutters; front end loaders, backhoes, tillers, posthole diggers, scraper blades, cultivators, subsoilers, and other tractor attachments and implements. This segment also provides commercial and residential zero turn mowers; hydraulic and mechanical boom and reach mowers; hedge and hedgerow cutters; industrial grass mowers; seedbed preparation equipment; and forestry and tree care tools, including chippers, stump grinders, mulchers, brush cutters, flails, and debarkers, as well as remote control mowers and related replacement parts. Its Industrial Equipment segment offers hydraulic telescoping booms; catch basin and roadway debris vacuum systems; sewer cleaners; vacuum trucks, combination sewer cleaners, hydro excavators, trenchers, and high pressure cleaning systems; truck mounted snow plows, blowers, dump bodies, spreaders, deicers, brine sprayers, snow throwers, and wing systems; salt spreaders; street sweepers, including mechanical broom and regenerative air models; leaf and debris collection equipment and replacement brooms; solid waste and recycling equipment; municipal tractors and attachments; asphalt patchers; underground construction forms; traffic control and crash attenuator trucks; industrial vacuum excavation units; trailer mounted and custom truck mounted systems; and related accessories and truck up fitting services. The company serves the infrastructure building and maintenance, industrial construction, public works, land maintenance, agriculture, and tree care markets. Alamo Group Inc. was founded in 1955 and is headquartered in Seguin, Texas.

Federal Signal Corporation designs, manufactures, and supplies a suite of products and integrated solutions for municipal, governmental, industrial, and commercial customers in the United States, Canada, Europe, and internationally. It operates through two segments, Environmental Solutions Group, and Safety and Security Systems Group. The company offers street sweepers, sewer cleaners, industrial vacuum loaders, safe-digging trucks, dump truck bodies, and trailers, as well as waterblasting, road-marking, line-removal, metal extraction support equipment, and multi-purpose maintenance vehicles under the ELGIN, VACTOR, GUZZLER, TRUVAC, WESTECH, JETSTREAM, BLASTERS, MARK RITE LINES, HOG, NEW WAY, TRACKLESS, OX BODIES, CRYSTEEL, J-CRAFT, DURACLASS, RUGBY, TRAVIS, OSW, NTE, WTB, GROUND FORCE, TOWHAUL, BUCKS, AND SWITCH-N-GO brands; and provides refuse and recycling collection vehicles through a dealer network or direct sales to service customers. It is also involved in sale of parts, service and repair, equipment rentals, and training. The company also provides systems for community alerting, emergency vehicles, first responder interoperable communications, and industrial communications; public safety equipment, such as vehicle lightbars and sirens, industrial signaling equipment, public warning systems, and general alarm/public address systems under the Federal Signal, Federal Signal VAMA, and Victor brand names through wholesalers, distributors, independent manufacturer representatives, original equipment manufacturers, and direct sales force, as well as independent foreign distributors. Federal Signal Corporation was founded in 1901 and is based in Downers Grove, Illinois.

Latest Machinery and Alamo Group Inc., Federal Signal Corporation Stock News

As of September 2, 2026, Alamo Group Inc. had a $2.1 billion market capitalization, compared to the Machinery median of $4.0 million. Alamo Group Inc.’s stock is NA in 2026, NA in the previous five trading days and down 17.94% in the past year.

Currently, Alamo Group Inc.’s price-earnings ratio is 20.5. Alamo Group Inc.’s trailing 12-month revenue is $1.7 billion with a 6.1% net profit margin. Year-over-year quarterly sales growth most recently was 7.5%. Analysts expect adjusted earnings to reach $10.554 per share for the current fiscal year. Alamo Group Inc. currently has a 0.8% dividend yield.

Currently, Federal Signal Corporation’s price-earnings ratio is 24.8. Federal Signal Corporation’s trailing 12-month revenue is $2.4 billion with a 11.7% net profit margin. Year-over-year quarterly sales growth most recently was 18.7%. Analysts expect adjusted earnings to reach $5.231 per share for the current fiscal year. Federal Signal Corporation currently has a 0.5% dividend yield.

How We Compare Alamo Group Inc. and Federal Signal Corporation 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 Alamo Group Inc. and Federal Signal Corporation’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

Alamo Group Inc. and Federal Signal Corporation Stock Value Grades

Company	Ticker	Value
Alamo Group Inc.	ALG	C
Federal Signal Corporation	FSS	D

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.

Alamo Group Inc. has a Value Score of 52, which is Average. Federal Signal Corporation has a Value Score of 28, which is Expensive.

The Value Stock Winner: No Clear Winner

Neither Alamo Group Inc. or Federal Signal Corporation 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 Alamo Group Inc. or Federal Signal Corporation is the better investment when it comes to value.

Alamo Group Inc. and Federal Signal Corporation Growth Grades

Company	Ticker	Growth
Alamo Group Inc.	ALG	B
Federal Signal Corporation	FSS	A

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.

Alamo Group Inc. has a Growth Score of 77, which is Strong. Federal Signal Corporation has a Growth Score of 89, which is Very Strong.

The Growth Grade Winner: Federal Signal Corporation

As you can clearly see from the Growth Grade breakdown above, Federal Signal Corporation has a more attractive growth grade than Alamo Group Inc.. For investors who focus solely on how a company is growing relative to other companies in the same industry, Federal Signal Corporation 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.

Alamo Group Inc. and Federal Signal Corporation’s Momentum Grades

Company	Ticker	Momentum
Alamo Group Inc.	ALG	D
Federal Signal Corporation	FSS	D

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%.

Alamo Group Inc. has a Momentum Score of 39, which is Weak. Federal Signal Corporation has a Momentum Score of 40, which is Weak.

The Momentum Stock Winner: No Clear Winner

Neither Alamo Group Inc. or Federal Signal Corporation has a strong enough Momentum Grade to be considered a “winner.” Investors considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Alamo Group Inc. or Federal Signal Corporation is the better investment when it comes to momentum.

Other Alamo Group Inc. and Federal Signal Corporation 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 Alamo Group Inc. and Federal Signal Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Alamo Group Inc. or Federal Signal Corporation Stock?

Overall, Alamo Group Inc. stock has a Value Score of 52, Growth Score of 77 and Momentum Score of 39.

Federal Signal Corporation stock has a Value Score of 28, Growth Score of 89 and Momentum Score of 40.

Comparing Alamo Group Inc. and Federal Signal Corporation’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.