Sifting through countless of stocks in the Insurance 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 Aon plc, Brown & Brown or 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 Aon plc, Brown & Brown and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Aon plc, Brown & Brown and Inc.

Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments. The company offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and affinity programs; health solutions, such as consulting and brokerage, consumer benefits, and talent advisory services; and wealth solutions, including retirement consulting and investments. It also provides treaty and facultative reinsurance; strategy and technology group solutions; insurance-linked securities, capital raising, strategic advice, restructuring, and merger and acquisition services; and risk management products and solutions, capital market solutions, and corporate finance advisory services. In addition, the company offers strategic design advice and actuarial services; pension risk transfer and integrated pension administration; and investment advisory services on developing and maintaining investment programs across various plan types, including defined benefit plans, defined contribution plans, master trusts, and pooled employer plans for corporations, public pensions, endowments, and foundations. Aon plc was incorporated in 1979 and is headquartered in Dublin, Ireland.

Brown & Brown, Inc. markets and sells insurance products and services in the United States, the United Kingdom, and internationally. It operates through Retail and Specialty Distribution segments. The Retail segment provides property and casualty insurance products, employee benefits insurance products, personal insurance products, specialties insurance products, risk management strategies, loss control surveys and analysis, consulting, and claims processing services. This segment also offers non-insurance services and products through automobile and recreational vehicle dealer services businesses. It serves commercial, public and quasi-public entities, professionals, and individual customers. The Specialty Distribution segment comprises wholesale brokerage and specialty businesses. This segment offers professional liability and related package insurance products for dentistry, legal, eyecare, financial services, physicians, and real estate title professionals, as well as supplementary insurance products related to weddings, events, medical facilities, and cyber liabilities. This segment also provides public entity-related and specialty programs through a network of independent agents, as well as program management services for insurance carrier partners. In addition, the company’s wholesale brokerage businesses underwrite and place excess and surplus commercial and personal lines insurance through independent agents and brokers. Its program businesses operate under the Arrowhead Programs name. The company was formerly known as Poe & Brown, Inc. and changed its name to Brown & Brown, Inc. in April 1999. Brown & Brown, Inc. was founded in 1939 and is headquartered in Daytona Beach, Florida.

Latest Insurance and Aon plc, Brown & Brown, Inc. Stock News

As of September 1, 2026, Aon plc had a $69.2 billion market capitalization, compared to the Insurance median of $7.2 million. Aon plc’s stock is NA in 2026, NA in the previous five trading days and down 11.09% in the past year.

Currently, Aon plc’s price-earnings ratio is 18.0. Aon plc’s trailing 12-month revenue is $17.6 billion with a 22.3% net profit margin. Year-over-year quarterly sales growth most recently was 2.2%. Analysts expect adjusted earnings to reach $18.914 per share for the current fiscal year. Aon plc currently has a 1.0% dividend yield.

Currently, Brown & Brown, Inc.’s price-earnings ratio is 22.7. Brown & Brown, Inc.’s trailing 12-month revenue is $6.7 billion with a 18.1% net profit margin. Year-over-year quarterly sales growth most recently was 32.4%. Analysts expect adjusted earnings to reach $4.482 per share for the current fiscal year. Brown & Brown, Inc. currently has a 0.9% dividend yield.

How We Compare Aon plc, Brown & Brown and 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 Aon plc, Brown & Brown and Inc.’s stock grades to see how they measure up against one another.

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Aon plc, Brown & Brown and Inc.’s Quality Grades

Company	Ticker	Quality
Aon plc	AON	A
Brown & Brown, Inc.	BRO	C

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.

Aon plc has a Quality Score of 83, which is Very Strong. Brown & Brown, Inc. has a Quality Score of 53, which is Average.

The Quality Grade Winner: Aon plc

As you can clearly see from the Quality Grade breakdown above, Aon plc has a better overall quality grade than Brown & Brown, Inc.. For investors who are looking for companies with higher quality than others in the same industry, Aon plc could be a good stock to add to their portfolios. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Aon plc, Brown & Brown and Inc.’s Momentum Grades

Company	Ticker	Momentum
Aon plc	AON	D
Brown & Brown, Inc.	BRO	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%.

Aon plc has a Momentum Score of 33, which is Weak. Brown & Brown, Inc. has a Momentum Score of 49, which is Average.

The Momentum Stock Winner: No Clear Winner

Neither Aon plc, Brown & Brown or 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 Aon plc, Brown & Brown or Inc. is the better investment when it comes to momentum.

Aon plc, Brown & Brown and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Aon plc	AON	D
Brown & Brown, Inc.	BRO	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.

Aon plc has a Earnings Estimate Score of 37, which is Negative. Brown & Brown, Inc. has a Earnings Estimate Score of 43, which is Neutral.

The Earnings Estimate Revisions Stock Winner: No Clear Winner

Neither Aon plc, Brown & Brown or Inc. has an Earnings Estimate Revisions Grade that could 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 Aon plc, Brown & Brown or Inc. is the better investment when it comes to estimate revisions.

Other Aon plc, Brown & Brown and Inc. Grades

In addition to Estimate Revisions, Momentum and Quality, 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 Aon plc, Brown & Brown and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Aon plc, Brown & Brown or Inc. Stock?

Overall, Aon plc stock has a Momentum Score of 33, Estimate Revisions Score of 37 and Quality Score of 83.

Brown & Brown, Inc. stock has a Momentum Score of 49, Estimate Revisions Score of 43 and Quality Score of 53.

Comparing Aon plc, Brown & Brown and 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.