Sifting through countless of stocks in the Trading Companies & Distributors 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 GATX Corporation or DNOW Inc. 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 GATX Corporation and DNOW Inc. compare based on key financial metrics to determine which better meets your investment needs.

About GATX Corporation and DNOW Inc.

GATX Corporation, together its subsidiaries, operates as railcar leasing company in the United States, Canada, Mexico, Europe, and India. It operates through three segments: Rail North America, Rail International, and Engine Leasing. The company leases tank and freight railcars, and locomotives for petroleum, chemical, food/agriculture, and transportation industries. It also offers maintenance services, including the interior cleaning of railcars, routine maintenance and repair of car body and safety appliances, regulatory compliance works, wheelset replacements, interior blast and lining, exterior blast and painting, and car stenciling services. In addition, the company manufactures commercial aircraft jet engines and leases aircraft spare engines; and owns and manages tank containers that are leased to chemical, industrial gas, energy, food, cryogenic and pharmaceutical industries, transport and logistic, and tank container operators, as well as provides tank container leasing, remarketing, and inspection and maintenance services. As of December 31, 2025, it owned and operated a fleet of approximately 156,000 railcars; 567 four-axle and 60 six-axle locomotives; 456 aircraft spare engines; and 25,602 tank containers. GATX Corporation was founded in 1898 and is headquartered in Chicago, Illinois.

DNOW Inc. distributes pipe, valves, fittings, and pumps in the United States, Canada, and internationally. The company offers flanges, gaskets, fasteners, electrical, instrumentation, artificial lift, and pumping systems, process and production equipment, production measurement technology, maintenance, repair and operating consumables (MRO), and general and specialty products; personal protective equipment; and mill, tools, safety supplies, as well as vapor recovery systems under EcoVapo brand. It also offers original equipment manufacturer equipment, including pumps, generator sets, air compressors, dryers, blowers, mixers, and valves; modular oil and gas wellsite facility solutions; and application systems, work processes, parts integration, optimization solutions, and after-sales support services. In addition, the company provides supply chain and materials management; inventory planning; integrated supply; integrated supply; product quality programs; manufacturer assessments; multiple daily deliveries; volume purchasing; truck stocking; technical support; training; just-in-time delivery; and on-site commissioning; after-market field repair and rental mobile pumping units; inventory and zone store management; order consolidation; product tagging and system interfaces tailored; supplier specifications; engineering of control packages; valve inspection and repair; product expediting, tracking and tracing; documentation services; and pressure testing services. It serves customers in the upstream, midstream, and Gas Utilities sectors, as well as downstream and industrial including crude oil refining, petrochemical and chemical processing, general industrials, pharmaceutical, mining, water/wastewater treatment, data centers, liquefied natural gas, and terminals and renewable natural gas facilities. The company was formerly known as NOW Inc. and changed its name to DNOW Inc. in January 2024. DNOW Inc. was founded in 1862 and is headquartered in Houston, Texas.

Latest Trading Companies & Distributors and GATX Corporation, DNOW Inc. Stock News

As of July 31, 2026, GATX Corporation had a $6.4 billion market capitalization, compared to the Trading Companies & Distributors median of $4.9 million. GATX Corporation’s stock is up 5.5% in 2026, down 3.1% in the previous five trading days and up 15.18% in the past year.

Currently, GATX Corporation’s price-earnings ratio is 19.2. GATX Corporation’s trailing 12-month revenue is $1.9 billion with a 17.9% net profit margin. Year-over-year quarterly sales growth most recently was 38.4%. Analysts expect adjusted earnings to reach $10.190 per share for the current fiscal year. GATX Corporation currently has a 1.5% dividend yield.

As of July 31, 2026, DNOW Inc. had a $2.6 billion market cap, putting it in the 57th percentile of all stocks. DNOW Inc.’s stock is up 6.6% in 2026, down 2% in the previous five trading days and down 10.18% in the past year.

Currently, DNOW Inc. does not have a price-earnings ratio. DNOW Inc.’s trailing 12-month revenue is $3.4 billion with a -4.5% net profit margin. Year-over-year quarterly sales growth most recently was 97.5%. Analysts expect adjusted earnings to reach $0.318 per share for the current fiscal year. DNOW Inc. does not currently pay a dividend.

How We Compare GATX Corporation and DNOW Inc. 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 GATX Corporation and DNOW Inc.’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

GATX Corporation and DNOW Inc. Growth Grades

Company	Ticker	Growth
GATX Corporation	GATX	A
DNOW Inc.	DNOW	C

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.

GATX Corporation has a Growth Score of 100, which is Very Strong. DNOW Inc. has a Growth Score of 59, which is Average.

The Growth Grade Winner: GATX Corporation

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

GATX Corporation and DNOW Inc.’s Quality Grades

Company	Ticker	Quality
GATX Corporation	GATX	C
DNOW Inc.	DNOW	F

Like the Value Grade, AAII’s A+ Investor Quality Grade comes from the percentile rank of key metrics. Specifically, the Quality Score is the percentile rank of the average of the percentile ranks 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 the F-Score.

The score is variable, meaning it can consider all eight measures or, should any of the eight measures not be valid, the remaining measures that are valid. To be assigned a Quality Score, stocks must have a valid (non-null) measure and corresponding ranking for at least four of the eight quality measures.

The Quality Score is used to assess the underlying “quality” of a particular stock. A higher-quality stock possesses traits associated with upside potential and reduced downside risk. Backtesting of the Quality Grade shows that stocks with higher grades, on average, outperformed stocks with lower grades over the period of 1998 through 2019.

Stocks receive better grades (higher scores) for having higher scores for the quality subcomponents and worse grades (lower scores) for lower scores for the subcomponents.

GATX Corporation has a Quality Score of 58, which is Average. DNOW Inc. has a Quality Score of 18, which is Very Weak.

The Quality Stock Winner: No Clear Winner

Neither GATX Corporation or DNOW Inc. has a high enough Quality 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 portfolios. It’s important to look at a wide range of financial metrics in order to determine if GATX Corporation or DNOW Inc. is the better investment when it comes to quality.

GATX Corporation and DNOW Inc.’s Momentum Grades

Company	Ticker	Momentum
GATX Corporation	GATX	C
DNOW Inc.	DNOW	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%.

GATX Corporation has a Momentum Score of 45, which is Average. DNOW Inc. has a Momentum Score of 37, which is Weak.

The Momentum Stock Winner: No Clear Winner

Neither GATX Corporation or DNOW Inc. 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 GATX Corporation or DNOW Inc. is the better investment when it comes to momentum.

Other GATX Corporation and DNOW Inc. Grades

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

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).

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.

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 GATX Corporation and DNOW Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, GATX Corporation or DNOW Inc. Stock?

Overall, GATX Corporation stock has a Growth Score of 100, Momentum Score of 45 and Quality Score of 58.

DNOW Inc. stock has a Growth Score of 59, Momentum Score of 37 and Quality Score of 18.

Comparing GATX Corporation and DNOW Inc.’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.