Sifting through countless of stocks in the Energy Equipment & Services 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 NOV Inc. or Tidewater 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 NOV Inc. and Tidewater Inc. compare based on key financial metrics to determine which better meets your investment needs.

About NOV Inc. and Tidewater Inc.

NOV Inc. designs, constructs, manufactures, and sells systems, components, and products for oil and gas drilling and production, and industrial and renewable energy sectors in the United States and internationally. It operates in two segments, Energy Equipment, and Energy Products and Services. The Energy Products and Services segment offers drill bits and borehole enlargement products; independent drilling and intervention downhole tools equipment; frac plugs, frac sleeves, toe initiation burst port systems, and recyclable setting tools; electric submersible pumps, high viscosity pumps, and surface pumps; tubular coating and inspection services for drill-pipe and other oil country tubular goods; solids control and waste management equipment and services; data and digital solutions; precision-engineered drill pipe and drill-stem equipment; connectors and integral thread solutions, including conductor strings, surface casing, and liners; and composite pipe, tanks, and structures. Its Energy Equipment segment provides drilling equipment, such as land rigs, complete offshore drilling packages, and rig components; capital equipment, related consumables, and digital products for hydraulic stimulation, coiled tubing, and wireline services; marine and construction solutions; processing solutions for the separation and treatment of oil, gas, solids, seawater, and produced water production; flexible subsea pipe systems; cavity pumps, specialized mixers and heat exchangers; and reciprocating, multistage, and progressive cavity pumps, midstream products, including closures, transfer pumps, chokes and valves, as well as artificial lift support systems that include production BOPs and stuffing boxes. The company was formerly known as National Oilwell Varco, Inc. and changed its name to NOV Inc. in January 2021. NOV Inc. was founded in 1862 and is based in Houston, Texas.

Tidewater Inc., together with its subsidiaries, provides offshore support vessels and marine support services to the offshore energy industry through the operation of a fleet of offshore marine service vessels worldwide. The company operates through five segments: Americas, Asia Pacific, Middle East, Europe/Mediterranean, and West Africa. It offers phases of offshore crude oil and natural gas exploration, field development, production, maintenance, and windfarm development and maintenance activities; towing and anchor handling for mobile offshore drilling units; transportation of supplies and personnel necessary to sustain drilling, workover, and production operations; and field abandonment, dismantlement, and restoration activities. The company also provides offshore construction; seismic and subsea support; various other specialized services, such as pipe laying, cable laying, and geotechnical survey support for windfarm construction. Its vessels consist of anchor handling towing supply vessels, platform supply vessels, and other specialty vessels, as well as crew boats, utility vessels, and offshore tugs. The company serves integrated and independent oil and gas exploration, development, and production companies; mid-sized and smaller independent exploration and production companies; foreign government-owned or government-controlled organizations engaged in the exploration, development, and production of oil and gas; offshore drilling contractors; and other companies that provide services to the offshore energy industry comprising offshore construction companies, windfarm development companies, diving companies, and well stimulation companies. Tidewater Inc. was incorporated in 1956 and is headquartered in Houston, Texas.

Latest Energy Equipment & Services and NOV Inc., Tidewater Inc. Stock News

As of September 2, 2026, NOV Inc. had a $7.7 billion market capitalization, compared to the Energy Equipment & Services median of $1.4 million. NOV Inc.’s stock is up 37.5% in 2026, up 3.5% in the previous five trading days and up 65.73% in the past year.

Currently, NOV Inc.’s price-earnings ratio is 83.8. NOV Inc.’s trailing 12-month revenue is $8.6 billion with a 1.1% net profit margin. Year-over-year quarterly sales growth most recently was -2.5%. Analysts expect adjusted earnings to reach $0.929 per share for the current fiscal year. NOV Inc. currently has a 2.1% dividend yield.

As of September 2, 2026, Tidewater Inc. had a $5.0 billion market cap, putting it in the 67th percentile of all stocks. Tidewater Inc.’s stock is up 87.3% in 2026, up 1.7% in the previous five trading days and up 71.25% in the past year.

Currently, Tidewater Inc.’s price-earnings ratio is 20.3. Tidewater Inc.’s trailing 12-month revenue is $1.3 billion with a 18.3% net profit margin. Year-over-year quarterly sales growth most recently was 0.3%. Analysts expect adjusted earnings to reach $2.786 per share for the current fiscal year. Tidewater Inc. does not currently pay a dividend.

How We Compare NOV Inc. and Tidewater 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 NOV Inc. and Tidewater Inc.’s stock grades to see how they measure up against one another.

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NOV Inc. and Tidewater Inc. Stock Value Grades

Company	Ticker	Value
NOV Inc.	NOV	B
Tidewater Inc.	TDW	C

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.

NOV Inc. has a Value Score of 65, which is Value. Tidewater Inc. has a Value Score of 44, which is Average.

The Value Stock Winner: NOV Inc.

As you can clearly see from the Value Grade breakdown above, NOV Inc. is considered to have better value than Tidewater Inc.. For investors who focus solely on a company’s valuation, NOV 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.

NOV Inc. and Tidewater Inc. Growth Grades

Company	Ticker	Growth
NOV Inc.	NOV	C
Tidewater Inc.	TDW	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.

NOV Inc. has a Growth Score of 47, which is Average. Tidewater Inc. has a Growth Score of 59, which is Average.

The Growth Stock Winner: No Clear Winner

Neither NOV Inc. or Tidewater Inc. has a high enough Growth 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 NOV Inc. or Tidewater Inc. is the better investment when it comes to sustainable growth.

NOV Inc. and Tidewater Inc.’s Quality Grades

Company	Ticker	Quality
NOV Inc.	NOV	B
Tidewater Inc.	TDW	B

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.

NOV Inc. has a Quality Score of 71, which is Strong. Tidewater Inc. has a Quality Score of 72, which is Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both NOV Inc. and Tidewater Inc. have a grade of B. 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.

Other NOV Inc. and Tidewater Inc. Grades

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

Momentum grades help 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.

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).

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 NOV Inc. and Tidewater Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, NOV Inc. or Tidewater Inc. Stock?

Overall, NOV Inc. stock has a Value Score of 65, Growth Score of 47 and Quality Score of 71.

Tidewater Inc. stock has a Value Score of 44, Growth Score of 59 and Quality Score of 72.

Comparing NOV Inc. and Tidewater 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.