Sifting through countless of stocks in the Aerospace & Defense 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 RTX Corporation or Lockheed Martin 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 RTX Corporation and Lockheed Martin Corporation compare based on key financial metrics to determine which better meets your investment needs.

About RTX Corporation and Lockheed Martin Corporation

RTX Corporation, an aerospace and defense company, provides systems and services for commercial, military, and government customers worldwide. It operates through three segments: Collins Aerospace (Collins), Pratt & Whitney, and Raytheon. The Collins segment offers aerospace and defense products, and aftermarket services for civil and military aircraft manufacturers and commercial airlines, as well as regional, business, and general aviation, defense, and commercial space operations. This segment designs, manufactures, and supplies electric power generation and management and distribution, environmental control, flight control, air data and aircraft sensing, engine control, and engine nacelle systems, as well as engine components; cabin interiors, including seating, oxygen, food and beverage preparation, storage and galley, lavatory, and wastewater management systems; connected aviation solutions and services; and systems solutions for connected battlespace, test and training range systems, crew escape systems, and simulation and training. It also provides spare parts, overhaul and repair, engineering and technical support, training and fleet management solutions, and asset and information management services. The Pratt & Whitney segment supplies aircraft engines for commercial, military, business jet, and general aviation customers; and produces, sells, and services military and commercial auxiliary power units, as well as offers fleet management and aftermarket maintenance, repair, and overhaul services. The Raytheon segment provides defensive and offensive threat detection, tracking, and mitigation capabilities for government and commercial customers. This segment offers sensors, mission orchestration and satellite control products, and software. The company was formerly known as Raytheon Technologies Corporation and changed its name to RTX Corporation in July 2023. RTX Corporation was incorporated in 1934 and is headquartered in Arlington, Virginia.

Lockheed Martin Corporation, an aerospace and defense company, engages in the research, design, development, manufacture, integration, and sustainment of technology systems, products, and services in the United States, Europe, Asia, the Middle East, and internationally. The company operates through four segments: Aeronautics; Missiles and Fire Control (MFC); Rotary and Mission Systems (RMS); and Space. The Aeronautics segment offers combat and air mobility aircraft, unmanned air vehicles, and related technologies. The MFC segment provides air and missile defense systems; tactical missiles and precision strike weapon systems; logistics; fire control systems; mission operations support, readiness, engineering support, and integration services; and ground vehicles. The RMS segment offers military and commercial helicopters, surface ships, sea and land-based missile defense systems, radar and laser systems, sea and air-based mission and combat systems, command and control mission solutions, cyber solutions, simulation and training solutions, and services and supports surface ships. The Space segment provides satellites; space transportation systems; strategic, advanced strike, and defensive systems; and classified systems and services in support of national security systems. This segment also provides network-enabled situational awareness and integrates space and ground global systems to help its customers gather, analyze, and securely distribute critical intelligence data. It serves primarily serves the U.S. government and international customers, as well as foreign military sales contracted through the U.S. government. The company was formerly known as The Lockheed Corporation and changed its name to Lockheed Martin Corporation in March 1995. Lockheed Martin Corporation was founded in 1912 and is based in Bethesda, Maryland.

Latest Aerospace & Defense and RTX Corporation, Lockheed Martin Corporation Stock News

As of March 10, 2026, RTX Corporation had a $277.9 billion market capitalization, compared to the Aerospace & Defense median of $5.6 million. RTX Corporation’s stock is up 13.2% in 2026, down 0.6% in the previous five trading days and up 61.22% in the past year.

Currently, RTX Corporation’s price-earnings ratio is 41.7. RTX Corporation’s trailing 12-month revenue is $88.6 billion with a 7.6% net profit margin. Year-over-year quarterly sales growth most recently was 12.1%. Analysts expect adjusted earnings to reach $6.812 per share for the current fiscal year. RTX Corporation currently has a 1.3% dividend yield.

As of March 10, 2026, Lockheed Martin Corporation had a $149.8 billion market cap, putting it in the 98th percentile of all stocks. Lockheed Martin Corporation’s stock is up 34% in 2026, down 2.4% in the previous five trading days and up 37.49% in the past year.

Currently, Lockheed Martin Corporation’s price-earnings ratio is 30.3. Lockheed Martin Corporation’s trailing 12-month revenue is $75.0 billion with a 6.7% net profit margin. Year-over-year quarterly sales growth most recently was 9.1%. Analysts expect adjusted earnings to reach $29.922 per share for the current fiscal year. Lockheed Martin Corporation currently has a 2.1% dividend yield.

How We Compare RTX Corporation and Lockheed Martin 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 RTX Corporation and Lockheed Martin Corporation’s stock grades to see how they measure up against one another.

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RTX Corporation and Lockheed Martin Corporation’s Quality Grades

Company	Ticker	Quality
RTX Corporation	RTX	B
Lockheed Martin Corporation	LMT	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.

RTX Corporation has a Quality Score of 72, which is Strong. Lockheed Martin Corporation has a Quality Score of 75, which is Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both RTX Corporation and Lockheed Martin Corporation 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.

RTX Corporation and Lockheed Martin Corporation’s Momentum Grades

Company	Ticker	Momentum
RTX Corporation	RTX	B
Lockheed Martin Corporation	LMT	A

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%.

RTX Corporation has a Momentum Score of 79, which is Strong. Lockheed Martin Corporation has a Momentum Score of 81, which is Very Strong.

The Momentum Grade Winner: Lockheed Martin Corporation

As you can clearly see from the Momentum Grade breakdown above, Lockheed Martin Corporation is considered to have stronger momentum compared to RTX Corporation. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Lockheed Martin 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.

RTX Corporation and Lockheed Martin Corporation’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
RTX Corporation	RTX	B
Lockheed Martin Corporation	LMT	C

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.

RTX Corporation has a Earnings Estimate Score of 71, which is Positive. Lockheed Martin Corporation has a Earnings Estimate Score of 58, which is Neutral.

The Earnings Estimate Revisions Grade Winner: RTX Corporation

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, RTX Corporation has a better Earnings Estimate Revisions Grade than Lockheed Martin Corporation. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, RTX Corporation 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 RTX Corporation and Lockheed Martin Corporation Grades

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

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.

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 RTX Corporation and Lockheed Martin Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, RTX Corporation or Lockheed Martin Corporation Stock?

Overall, RTX Corporation stock has a Momentum Score of 79, Estimate Revisions Score of 71 and Quality Score of 72.

Lockheed Martin Corporation stock has a Momentum Score of 81, Estimate Revisions Score of 58 and Quality Score of 75.

Comparing RTX Corporation and Lockheed Martin 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.