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 Dover Corporation or Parker-Hannifin 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 Dover Corporation and Parker-Hannifin Corporation compare based on key financial metrics to determine which better meets your investment needs.

About Dover Corporation and Parker-Hannifin Corporation

Dover Corporation provides equipment and components, consumable supplies, aftermarket parts, software and digital solutions, and support services worldwide. The company’s Engineered Products segment provides various equipment, component, software, solution, and services that are used in vehicle aftermarket, aerospace and defense, industrial winch and hoist, and fluid dispensing end-market. This segment offers software solutions and services used in light and heavy-duty vehicle lifts, wheel service equipment, vehicle diagnostics, and vehicle collision repair solutions; winches, hoists, bearings, drives, and electric monitoring system; and radio frequency and microwave filters and switches, and signal intelligence solutions, as well as soldering and fluid dispensing solutions. Its Clean Energy & Fueling segment offers component, equipment, and software and service solution enabling safe storage and transport of fuel, cryogenic gases, and hazardous fluids, as well as operation of retail fueling and vehicle wash establishment. The company’s Imaging & Identification segment provides precision marking and coding, product traceability equipment, brand protection, and digital textile printing equipment and solution, as well as consumable, software, and service to packaged and consumer goods, pharmaceutical, industrial manufacturing, textile, and other end-market. Its Pumps & Process Solutions segment manufactures specialty pump, connector, flow meter, fluid connecting solution, plastics and polymer processing equipment, and engineered components for rotating and reciprocating machines. The company’s Climate & Sustainability Technologies segment manufactures refrigeration system, refrigeration display case, commercial glass refrigerator and freezer door, and brazed plate heat exchanger for industrial heating and cooling, and residential climate control applications. Dover Corporation was incorporated in 1947 and is headquartered in Downers Grove, Illinois.

Parker-Hannifin Corporation engages in the manufacture and sale of motion and control technologies and systems for aerospace and defense, in-plant and industrial equipment, transportation, off-highway, energy, and HVAC and refrigeration markets in North America, EMEA, Asia Pacific, and Latin America. It operates through two segments: Diversified Industrial and Aerospace Systems. The company offers various motion-control systems and components, such as active and passive vibration control, high purity sealing, coatings, high temperature sealing, cryogenic valves and fittings, HVAC/R controls and monitoring, elastomeric, fabric reinforced, metal, precision cut seals, hydrogen and natural gas filters, electric and hydraulic pumps and motors, industrial air, gas filtration, electric and hydraulic valves, miniature pumps and valves, electromagnetic interface shielding, pneumatic actuators, regulators and valves, electromechanical and hydraulic actuators, power take offs, electronics, drives and controllers, process filtration solutions, engine filtration solutions, rubber to substrate adhesives, fluid condition monitoring, sensors and diagnostics, fluid conveyance hose and tubing, structural adhesives, high pressure connectors, fittings, valves and regulators, thermal management, high purity fittings. The company also provides products for use in commercial and defense airframe and engine programs, such as avionics, electric and hydraulic braking systems, electric power, electromechanical actuators, engine exhaust systems and components, fire detection and suppression, flight control systems, fluid conveyance, fuel systems and components, fuel tank inserting systems, hydraulic pumps and motors, hydraulic valves and actuators, pneumatics, seals, sensors, and thermal management products. The company sells its products to original equipment manufacturers, distributors, direct-sales employees. Parker-Hannifin Corporation was founded in 1917 and is headquartered in Cleveland, Ohio.

Latest Machinery and Dover Corporation, Parker-Hannifin Corporation Stock News

As of September 2, 2026, Dover Corporation had a $25.4 billion market capitalization, compared to the Machinery median of $4.0 million. Dover Corporation’s stock is down 2.7% in 2026, down 5.9% in the previous five trading days and up 7.47% in the past year.

Currently, Dover Corporation’s price-earnings ratio is 22.8. Dover Corporation’s trailing 12-month revenue is $8.4 billion with a 13.5% net profit margin. Year-over-year quarterly sales growth most recently was 6.9%. Analysts expect adjusted earnings to reach $10.672 per share for the current fiscal year. Dover Corporation currently has a 1.1% dividend yield.

As of September 2, 2026, Parker-Hannifin Corporation had a $119.7 billion market cap, putting it in the 97th percentile of all stocks. Parker-Hannifin Corporation’s stock is up 8.4% in 2026, down 5.7% in the previous five trading days and up 26.6% in the past year.

Currently, Parker-Hannifin Corporation’s price-earnings ratio is 33.3. Parker-Hannifin Corporation’s trailing 12-month revenue is $21.5 billion with a 17.0% net profit margin. Year-over-year quarterly sales growth most recently was 9.8%. Analysts expect adjusted earnings to reach $35.333 per share for the current fiscal year. Parker-Hannifin Corporation currently has a 0.8% dividend yield.

How We Compare Dover Corporation and Parker-Hannifin 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 Dover Corporation and Parker-Hannifin 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

Dover Corporation and Parker-Hannifin Corporation Stock Value Grades

Company	Ticker	Value
Dover Corporation	DOV	D
Parker-Hannifin Corporation	PH	F

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.

Dover Corporation has a Value Score of 36, which is Expensive. Parker-Hannifin Corporation has a Value Score of 16, which is Ultra Expensive.

The Value Stock Winner: No Clear Winner

Neither Dover Corporation or Parker-Hannifin 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 Dover Corporation or Parker-Hannifin Corporation is the better investment when it comes to value.

Dover Corporation and Parker-Hannifin Corporation’s Quality Grades

Company	Ticker	Quality
Dover Corporation	DOV	A
Parker-Hannifin Corporation	PH	A

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.

Dover Corporation has a Quality Score of 91, which is Very Strong. Parker-Hannifin Corporation has a Quality Score of 96, which is Very Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both Dover Corporation and Parker-Hannifin Corporation have a grade of A. For investors who focus solely on a company’s overall quality, you will need to conduct further research into both companies to see if they are a good fit for your portfolio. As a good rule of thumb, you should always analyze multiple factors based on a wide range of metrics before choosing a company to invest in.

Dover Corporation and Parker-Hannifin Corporation’s Momentum Grades

Company	Ticker	Momentum
Dover Corporation	DOV	D
Parker-Hannifin Corporation	PH	B

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%.

Dover Corporation has a Momentum Score of 37, which is Weak. Parker-Hannifin Corporation has a Momentum Score of 65, which is Strong.

The Momentum Grade Winner: Parker-Hannifin Corporation

As you can clearly see from the Momentum Grade breakdown above, Parker-Hannifin Corporation is considered to have stronger momentum compared to Dover Corporation. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Parker-Hannifin Corporation 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 Dover Corporation and Parker-Hannifin Corporation Grades

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

Growth investing builds on the idea that stocks of companies exhibiting strong, consistent and prolonged growth outperform those of slower-growth companies. AAII measures growth through consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations.

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 Dover Corporation and Parker-Hannifin Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Dover Corporation or Parker-Hannifin Corporation Stock?

Overall, Dover Corporation stock has a Value Score of 36, Momentum Score of 37 and Quality Score of 91.

Parker-Hannifin Corporation stock has a Value Score of 16, Momentum Score of 65 and Quality Score of 96.

Comparing Dover Corporation and Parker-Hannifin 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.