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 Tronox Holdings plc or Innospec 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 Tronox Holdings plc and Innospec Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Tronox Holdings plc and Innospec Inc.

Tronox Holdings plc operates as a manufacturer of TiO2 pigment in North America, South and Central America, Europe, the Middle East, Africa, and the Asia Pacific. The company operates titanium-bearing mineral sand mines; and engages in beneficiation and smelting operations. It offers TiO2 pigment; ultrafine specialty TiO2; zircon; high purity pig iron; monazite; feedstock; and titanium tetrachloride products. The company’s products are used for the manufacture of paints, coatings, plastics, and paper, as well as various other applications. Tronox Holdings plc was incorporated in 2018 and is based in Stamford, Connecticut.

Innospec Inc. develops, manufactures, blends, markets, and supplies specialty chemicals in the Americas, Europe, the Middle East, Africa, and the Asia-Pacific. The company operates through three segments: Performance Chemicals, Fuel Specialties, and Oilfield Services. It offers specialty chemical products used as additives in diesel, jet, marine, fuel oil, and other fuels used in the operation of commercial trucking, marine and aviation engines, power station generators, heating oil, and other industrial machinery applications. It also provides technology-based solutions for customers’ processes or products in personal care, home care, agrochemical, construction, mining, and other industrial markets. In addition, the company develops and markets chemical solutions for drilling, completion, production, drag reducing agents, and oil and gas applications. It serves large multinational companies, manufacturers of personal and home care products and global mining, agriculture and building products, and other industrial companies; national and multinational oil companies, fuel marketers and retailers, fuel terminals, marine lines, coating and plastics producers, and other heavy industrial end-users; and multinational public, independent exploration and production, and oilfield services companies. The company was formerly known as Octel Corp. and changed its name to Innospec Inc. in January 2006. Innospec Inc. was founded in 1938 and is headquartered in Englewood, Colorado.

Latest Chemicals and Tronox Holdings plc, Innospec Inc. Stock News

As of September 2, 2026, Tronox Holdings plc had a $817.7 million market capitalization, compared to the Chemicals median of $4.2 million. Tronox Holdings plc’s stock is up 17% in 2026, down 11.1% in the previous five trading days and up 23.37% in the past year.

Currently, Tronox Holdings plc does not have a price-earnings ratio. Tronox Holdings plc’s trailing 12-month revenue is $3.1 billion with a -19.2% net profit margin. Year-over-year quarterly sales growth most recently was 18.7%. Analysts expect adjusted earnings to reach $-1.369 per share for the current fiscal year. Tronox Holdings plc currently has a 3.9% dividend yield.

As of September 2, 2026, Innospec Inc. had a $2.3 billion market cap, putting it in the 56th percentile of all stocks. Innospec Inc.’s stock is up 21.7% in 2026, down 2.3% in the previous five trading days and up 7.66% in the past year.

Currently, Innospec Inc.’s price-earnings ratio is 19.1. Innospec Inc.’s trailing 12-month revenue is $1.8 billion with a 6.6% net profit margin. Year-over-year quarterly sales growth most recently was 11.8%. Analysts expect adjusted earnings to reach $4.937 per share for the current fiscal year. Innospec Inc. currently has a 2.0% dividend yield.

How We Compare Tronox Holdings plc and Innospec 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 Tronox Holdings plc and Innospec Inc.’s stock grades to see how they measure up against one another.

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Tronox Holdings plc and Innospec Inc. Growth Grades

Company	Ticker	Growth
Tronox Holdings plc	TROX	C
Innospec Inc.	IOSP	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.

Tronox Holdings plc has a Growth Score of 43, which is Average. Innospec Inc. has a Growth Score of 61, which is Strong.

The Growth Grade Winner: Innospec Inc.

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

Tronox Holdings plc and Innospec Inc.’s Momentum Grades

Company	Ticker	Momentum
Tronox Holdings plc	TROX	C
Innospec Inc.	IOSP	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%.

Tronox Holdings plc has a Momentum Score of 54, which is Average. Innospec Inc. has a Momentum Score of 59, which is Average.

The Momentum Stock Winner: No Clear Winner

Neither Tronox Holdings plc or Innospec 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 Tronox Holdings plc or Innospec Inc. is the better investment when it comes to momentum.

Tronox Holdings plc and Innospec Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Tronox Holdings plc	TROX	F
Innospec Inc.	IOSP	B

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

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

Tronox Holdings plc has a Earnings Estimate Score of 12, which is Very Negative. Innospec Inc. has a Earnings Estimate Score of 70, which is Positive.

The Earnings Estimate Revisions Grade Winner: Innospec Inc.

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, Innospec Inc. has a better Earnings Estimate Revisions Grade than Tronox Holdings plc. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, Innospec Inc. could be a good stock to invest in. However, it’s important to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Other Tronox Holdings plc and Innospec Inc. Grades

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

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 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 Tronox Holdings plc and Innospec Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Tronox Holdings plc or Innospec Inc. Stock?

Overall, Tronox Holdings plc stock has a Growth Score of 43, Momentum Score of 54 and Estimate Revisions Score of 12.

Innospec Inc. stock has a Growth Score of 61, Momentum Score of 59 and Estimate Revisions Score of 70.

Comparing Tronox Holdings plc and Innospec 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.