Sifting through countless of stocks in the Chemicals 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 PPG Industries, Inc. or RPM International 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 PPG Industries, Inc. and RPM International Inc. compare based on key financial metrics to determine which better meets your investment needs.

About PPG Industries, Inc. and RPM International Inc.

PPG Industries, Inc. manufactures and distributes paints, coatings, and specialty materials in the United States, Canada, the Asia Pacific, Latin America, Europe, the Middle East, and Africa. It operates through three segments: Global Architectural Coatings, Performance Coatings, and Industrial Coatings. The Global Architectural Coatings segment supplies a variety of decorative coatings, adhesives, sealants, and finishes, as well as paint strippers, stains, and related chemicals. Its Performance Coatings segment offers aerospace coatings, automotive refinishing coatings, protective and marine coatings, and traffic solutions comprising paints, thermoplastics, raised pavement markers, and other technologies for pavement marking. The Industrial Coatings segment provides automotive OEM coatings, industrial coatings, and packaging coatings, as well as specialty products, such as optical monomers and coatings, low-friction coatings, and other specialty products. The company delivers its products to company-owned stores, home centers and other consumer retail outlets, paint dealers, concessionaires and independent distributors, company-owned distribution networks, and directly to manufacturing companies and retail customers. PPG Industries, Inc. was incorporated in 1883 and is headquartered in Pittsburgh, Pennsylvania.

RPM International Inc. provides specialty chemicals for the construction, industrial, specialty, and consumer markets. It operates in four segments: CPG, PCG, Consumer, and SPG. The company offers waterproofing, coating, and traditional roofing systems; sealants, air barriers, tapes, and foams; residential home weatherization systems; roofing and building maintenance services; sealing and bonding, subfloor preparation, flooring, and glazing solutions; resin flooring systems, polyurethane, MMA waterproof, epoxy floor paint and coatings, concrete repair, and protection products; fire stopping and intumescent steel coating, and manufacturing industry solutions; and rolled asphalt roofing materials and chemical admixtures. It also provides concrete and masonry admixtures, concrete fibers, cement performance enhancers, curing and sealing compounds, structural grouts and mortars, epoxy adhesives, injection resins, polyurethane foams, floor hardeners and toppings, joint fillers, industrial and architectural coatings, decorative color/stains/stamps, restoration materials, concrete panel wall systems, flooring systems, fluorescent colorants and pigments, shellac-based-specialty and marine coatings, and fuel additives. It offers fiberglass reinforced plastic gratings and shapes; corrosion-control coating, containment and railcar lining, fire and sound proofing, heat and cryogenic insulation, and specialty construction products; amine curing agents, reactive diluents, and epoxy resins; fire and water damage restoration, carpet cleaning, and disinfecting products; wood treatments, coatings, and touch-up products; nail enamels, polishes, and coating components; paint contractors and DIYers, concrete restoration and flooring, metallic and faux finish coatings, cleaners, and hobby paints and cements; and caulks, adhesives, insulating foams, and patches, spackling, glazing, and repair products. The company was incorporated in 1947 and is headquartered in Medina, Ohio.

Latest Chemicals and PPG Industries, Inc., RPM International Inc. Stock News

As of June 18, 2026, PPG Industries, Inc. had a $26.4 billion market capitalization, compared to the Chemicals median of $3.6 million. PPG Industries, Inc.’s stock is up 15.4% in 2026, down 0.9% in the previous five trading days and up 9.96% in the past year.

Currently, PPG Industries, Inc.’s price-earnings ratio is 16.9. PPG Industries, Inc.’s trailing 12-month revenue is $16.1 billion with a 9.8% net profit margin. Year-over-year quarterly sales growth most recently was 6.7%. Analysts expect adjusted earnings to reach $7.868 per share for the current fiscal year. PPG Industries, Inc. currently has a 2.4% dividend yield.

As of June 18, 2026, RPM International Inc. had a $13.8 billion market cap, putting it in the 82nd percentile of all stocks. RPM International Inc.’s stock is up 3.8% in 2026, up 0.9% in the previous five trading days and up 0.6% in the past year.

Currently, RPM International Inc.’s price-earnings ratio is 20.8. RPM International Inc.’s trailing 12-month revenue is $7.7 billion with a 8.6% net profit margin. Year-over-year quarterly sales growth most recently was 8.9%. Analysts expect adjusted earnings to reach $5.481 per share for the current fiscal year. RPM International Inc. currently has a 2.0% dividend yield.

How We Compare PPG Industries, Inc. and RPM International 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 PPG Industries, Inc. and RPM International Inc.’s stock grades to see how they measure up against one another.

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PPG Industries, Inc. and RPM International Inc. Stock Value Grades

Company	Ticker	Value
PPG Industries, Inc.	PPG	C
RPM International Inc.	RPM	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.

PPG Industries, Inc. has a Value Score of 48, which is Average. RPM International Inc. has a Value Score of 35, which is Expensive.

The Value Stock Winner: No Clear Winner

Neither PPG Industries, Inc. or RPM International Inc. 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 PPG Industries, Inc. or RPM International Inc. is the better investment when it comes to value.

PPG Industries, Inc. and RPM International Inc. Growth Grades

Company	Ticker	Growth
PPG Industries, Inc.	PPG	C
RPM International Inc.	RPM	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.

PPG Industries, Inc. has a Growth Score of 56, which is Average. RPM International Inc. has a Growth Score of 100, which is Very Strong.

The Growth Grade Winner: RPM International Inc.

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

PPG Industries, Inc. and RPM International Inc.’s Momentum Grades

Company	Ticker	Momentum
PPG Industries, Inc.	PPG	C
RPM International Inc.	RPM	C

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%.

PPG Industries, Inc. has a Momentum Score of 54, which is Average. RPM International Inc. has a Momentum Score of 46, which is Average.

The Momentum Stock Winner: No Clear Winner

Neither PPG Industries, Inc. or RPM International 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 PPG Industries, Inc. or RPM International Inc. is the better investment when it comes to momentum.

Other PPG Industries, Inc. and RPM International Inc. 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 PPG Industries, Inc. and RPM International Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, PPG Industries, Inc. or RPM International Inc. Stock?

Overall, PPG Industries, Inc. stock has a Value Score of 48, Growth Score of 56 and Momentum Score of 54.

RPM International Inc. stock has a Value Score of 35, Growth Score of 100 and Momentum Score of 46.

Comparing PPG Industries, Inc. and RPM International 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.