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Stocks to Compare Sections All Sections Selected Performance Chart Price & Volume MarketRank Analyst Ratings Sales & Book Value Profitability & Earnings Dividends Debt Ownership Miscellaneous Headlines About Compare NYSE:AJG NYSE:AON NYSE:BRO NYSE:MRSH On This Page Performance ChartPrice & VolumeMarketRank™Analyst RatingsSales & Book ValueProfitability & EarningsDividendsDebtOwnershipMiscellaneousHeadlinesAbout Comparison Ideas Stock Ideas Comparative Price Performance Over Time1 day7 days30 days90 days365 daysCompare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAJGArthur J. Gallagher & Co.$204.89-1.2%$211.64$190.75▼$351.23$52.60B0.541.92 million shs1.24 million shsAONAON$324.73+0.2%$321.84$304.59▼$381.00$69.37B0.721.51 million shs928,979 shsBROBrown & Brown$57.86-1.1%$63.68$53.81▼$113.83$19.60B0.663.69 million shs2.55 million shsMRSHMarsh & McLennan Companies$164.14-0.6%$168.09$158.16▼$235.78$79.07B0.652.67 million shs2.46 million shsReduce the RiskMarket downturns give many investors pause, and for good reason. Wondering how to offset this risk? Click the link to learn more about using beta to protect your portfolio.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAJGArthur J. Gallagher & Co.0.00%+2.54%-6.55%-5.38%-39.34%AONAON0.00%+2.39%+0.30%-0.13%-9.27%BROBrown & Brown0.00%+2.81%-14.33%-16.83%-47.84%MRSHMarsh & McLennan Companies0.00%+1.90%-5.65%-8.51%+16,413,899,900.00%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAJGArthur J. Gallagher & Co.$204.89-1.2%$211.64$190.75▼$351.23$52.60B0.541.92 million shs1.24 million shsAONAON$324.73+0.2%$321.84$304.59▼$381.00$69.37B0.721.51 million shs928,979 shsBROBrown & Brown$57.86-1.1%$63.68$53.81▼$113.83$19.60B0.663.69 million shs2.55 million shsMRSHMarsh & McLennan Companies$164.14-0.6%$168.09$158.16▼$235.78$79.07B0.652.67 million shs2.46 million shsReduce the RiskMarket downturns give many investors pause, and for good reason. Wondering how to offset this risk? Click the link to learn more about using beta to protect your portfolio.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAJGArthur J. Gallagher & Co.0.00%+2.54%-6.55%-5.38%-39.34%AONAON0.00%+2.39%+0.30%-0.13%-9.27%BROBrown & Brown0.00%+2.81%-14.33%-16.83%-47.84%MRSHMarsh & McLennan Companies0.00%+1.90%-5.65%-8.51%+16,413,899,900.00%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAJGArthur J. Gallagher & Co. 2.58Moderate Buy$264.0028.85% UpsideAONAON 2.76Moderate Buy$396.0021.95% UpsideBROBrown & Brown 2.26Hold$79.4437.28% UpsideMRSHMarsh & McLennan Companies 2.41Hold$205.0024.89% UpsideCurrent Analyst Ratings BreakdownLatest MRSH, AON, AJG, and BRO Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/21/2026AONAON Morgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetOverweight$380.00 ➝ $370.005/21/2026AJGArthur J. Gallagher & Co. UBS GroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingSet Price Target$240.005/21/2026BROBrown & Brown CitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingInitiated CoverageBuy ➝ Market Outperform5/21/2026AJGArthur J. Gallagher & Co. Morgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetOverweight$265.00 ➝ $240.005/21/2026BROBrown & Brown Citizens JmpSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingInitiated CoverageMarket Outperform$70.005/21/2026BROBrown & Brown Morgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetEqual Weight$65.00 ➝ $60.005/11/2026MRSHMarsh & McLennan Companies Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeHold (C) ➝ Hold (C-)5/7/2026AJGArthur J. Gallagher & Co. Morgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingSet Price Target$265.005/6/2026BROBrown & Brown CitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeNeutral ➝ Buy$70.005/6/2026AJGArthur J. Gallagher & Co. CitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeNeutral ➝ Buy$280.00 ➝ $250.005/6/2026MRSHMarsh & McLennan Companies CitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeNeutral ➝ Buy$200.00(Data available from 5/24/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAJGArthur J. Gallagher & Co.$13.94B3.78$15.26 per share13.43$92.65 per share2.21AONAON$17.18B4.04$21.74 per share14.94$46.62 per share6.97BROBrown & Brown$5.90B3.32$5.18 per share11.16$37.21 per share1.56MRSHMarsh & McLennan Companies$26.98B2.93$11.68 per share14.05$30.73 per share5.34Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAJGArthur J. Gallagher & Co.$1.49B$6.1833.1513.951.0410.76%12.83%3.89%7/30/2026 (Estimated)AONAON$3.70B$18.2217.8215.331.7222.54%43.50%7.44%7/24/2026 (Estimated)BROBrown & Brown$1.05B$3.1118.6111.912.6717.94%12.94%5.55%7/27/2026 (Estimated)MRSHMarsh & McLennan Companies$4.16B$8.0020.5214.622.3914.26%31.87%8.35%N/ALatest MRSH, AON, AJG, and BRO EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/2/2026Q1 2026AONAON$6.37$6.48+$0.11$5.63$4.97 billion$5.03 billion4/30/2026Q1 2026AJGArthur J. Gallagher & Co.$4.43$4.47+$0.04$3.16$4.73 billion$4.71 billion4/27/2026Q1 2026BROBrown & Brown$1.36$1.39+$0.03$1.06$1.89 billion$1.90 billion4/16/2026Q1 2026MRSHMarsh & McLennan Companies$3.21$3.29+$0.08$2.36N/A$7.30 billionCompare DividendsCompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive GrowthAJGArthur J. Gallagher & Co.$2.801.37%+7.63%45.31%15 YearsAONAON$2.980.92%+10.33%16.36%N/ABROBrown & Brown$0.661.14%+12.11%21.22%N/AMRSHMarsh & McLennan Companies$3.602.19%+13.26%45.00%15 YearsLatest MRSH, AON, AJG, and BRO DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date4/29/2026AJGArthur J. Gallagher & Co.quarterly$0.701.32%6/5/20266/5/20266/19/20264/27/2026BROBrown & Brownquarterly$0.16501.19%5/11/20265/11/20265/20/20264/10/2026AONAONquarterly$0.821.05%5/1/20265/1/20265/15/20262/25/2026MRSHMarsh & McLennan Companiesquarterly$0.902.08%4/9/20264/9/20265/15/2026(Data available from 1/1/2013 forward)Compare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAJGArthur J. Gallagher & Co.0.511.061.06AONAON1.361.951.95BROBrown & Brown0.521.641.64MRSHMarsh & McLennan Companies1.281.111.11Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAJGArthur J. Gallagher & Co.85.53%AONAON86.14%BROBrown & Brown71.01%MRSHMarsh & McLennan Companies87.99%Insider OwnershipCompanyInsider OwnershipAJGArthur J. Gallagher & Co.1.40%AONAON1.00%BROBrown & Brown13.13%MRSHMarsh & McLennan Companies0.38%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAJGArthur J. Gallagher & Co.72,000256.90 million253.30 millionOptionableAONAON60,000213.58 million211.44 millionOptionableBROBrown & Brown7,905338.95 million294.44 millionOptionableMRSHMarsh & McLennan Companies95,000481.79 million479.96 millionOptionableMRSH, AON, AJG, and BRO HeadlinesRecent News About These CompaniesMarkel Group Inc. Purchases 6,750 Shares of Marsh & McLennan Companies, Inc. $MRSHMay 23 at 6:22 AM | marketbeat.comMarsh & McLennan Shareholders Back Board, Pay and AuditorMay 22 at 5:11 PM | tipranks.comInsider Purchase: Director at $SER Buys 12,183 SharesMay 22 at 5:10 PM | quiverquant.comQMarsh ENEOS Deal Tests Acquisition Driven Growth In Japanese Insurance MarketMay 22 at 5:10 PM | finance.yahoo.comMarshalls CFO Retains Shares After Incentive Award VestingMay 22 at 11:11 AM | tipranks.comMarshalls CEO Simon Bourne Retains Shares Following Incentive Plan VestingMay 22 at 11:11 AM | tipranks.comOrange Investment Advisors Inc. Has $6.07 Million Position in Marsh & McLennan Companies, Inc. $MRSHMay 22 at 7:03 AM | marketbeat.comFideuram Intesa Sanpaolo Private Banking S.P.A. Invests $1.92 Million in Marsh & McLennan Companies, Inc. $MRSHMay 22 at 3:57 AM | marketbeat.comMarsh Stockholders Re-Elect Board of Directors During 2026 MeetingMay 21 at 12:00 PM | businesswire.comRathbones Group PLC Has $247.14 Million Stock Position in Marsh & McLennan Companies, Inc. $MRSHMay 21 at 6:08 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MRSH Shares Sold by PNC Financial Services Group Inc.May 21 at 5:33 AM | marketbeat.comHighTower Advisors LLC Has $63.80 Million Position in Marsh & McLennan Companies, Inc. $MRSHMay 21 at 4:55 AM | marketbeat.comEnvestnet Portfolio Solutions Inc. Acquires 16,844 Shares of Marsh & McLennan Companies, Inc. $MRSHMay 21 at 4:55 AM | marketbeat.comMarsh to Showcase the Power of Perspective at the Lenovo Grand Prix du Canada as Formula 1®’s Official Risk Partner and Official Insurance Brokering PartnerMay 20, 2026 | financialpost.comFRubico Inc. Prices Public Offering of 5,263,160 Units at $0.95 per UnitMay 20, 2026 | quiverquant.comQMarsh to Showcase the Power of Perspective at the Lenovo Grand Prix du Canada as Formula 1®'s Official Risk Partner and Official Insurance Brokering PartnerMay 20, 2026 | businesswire.comResona Asset Management Co. Ltd. Sells 6,126 Shares of Marsh & McLennan Companies, Inc. $MRSHMay 20, 2026 | marketbeat.comHandelsbanken Fonder AB Purchases 6,717 Shares of Marsh & McLennan Companies, Inc. $MRSHMay 20, 2026 | marketbeat.comEmerging Urban Hubs Reshaping Global Investment, Manufacturing, and Talent Flows, New Report From Oliver Wyman FindsMay 19, 2026 | businesswire.comArmada Opens New Pittsburgh Headquarters at Innovation Ridge in Marshall TownshipMay 19, 2026 | markets.businessinsider.com16,928 Shares in Marsh & McLennan Companies, Inc. $MRSH Acquired by North Dakota State Investment BoardMay 19, 2026 | marketbeat.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeMRSH, AON, AJG, and BRO Company DescriptionsArthur J. Gallagher & Co. NYSE:AJG$204.89 -2.52 (-1.22%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$203.76 -1.13 (-0.55%) As of 05/22/2026 07:59 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Arthur J. Gallagher & Co. engages in the provision of insurance brokerage, reinsurance brokerage, consulting, and third-party claims settlement and administration services. It operates through the following segments: Brokerage, Risk Management, and Corporate. The Brokerage segment consists of retail and wholesale insurance brokerage operations. The Risk Management segment provides contract claim settlement and administration services. The Corporate segment manages clean energy and other investments. The company was founded by Arthur J. Gallagher in 1927 and is headquartered in Rolling Meadows, IL.AON NYSE:AON$324.73 +0.51 (+0.16%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$324.80 +0.07 (+0.02%) As of 05/22/2026 05:07 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Aon Plc engages in the provision of risk, health, and wealth solutions. It focuses on risk capital including claim management, reinsurance, risk analysis, management, retention, and transfer; and human capital involving analytics, health and benefits, investments, pensions and retirement, talent and rewards, and workplace wellbeing. The company was founded in 1982 and is headquartered in Dublin, Ireland.Brown & Brown NYSE:BRO$57.86 -0.66 (-1.12%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$57.82 -0.04 (-0.07%) As of 05/22/2026 04:56 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Brown & Brown, Inc. is an insurance agency, wholesale brokerage, insurance program and service organization. It engages in the provision of insurance brokerage services and casualty insurance underwriting services. It operates through the following segments: Retail, National Programs, Wholesale Brokerage, and Services. The Retail Segment receives fees in lieu of commissions. The National Programs segment acts as a managing general agent and provides professional liability and related package products for certain professionals, a range of insurance products for individuals, flood coverage, and targeted products and services designated for specific industries, trade groups, governmental entities and market niches. The Wholesale Brokerage segment markets and sells excess and surplus commercial and personal lines insurance, primarily through independent agents and brokers, as well as the company’s retail agents. The Services segment provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers' compensation and all-lines liability arenas, as well as Medicare Set-aside services, social security disability and Medicare benefits advocacy services and claims adjusting services. The company was founded by J. Adrian Brown and Charles Covington Owen in 1939 and is headquartered in Daytona Beach, FL.Marsh & McLennan Companies NYSE:MRSH$164.14 -0.98 (-0.59%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$163.78 -0.35 (-0.22%) As of 05/22/2026 05:05 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Marsh & McLennan Cos., Inc. is a professional services firm, which engages in offering clients advice and solutions in risk, strategy, and people. It operates through the Risk and Insurance Services, and Consulting segments. The Risk and Insurance Services segment is involved in risk management activities, as well as insurance and reinsurance broking and services. The Consulting segment offers health, wealth, and career solutions and products, and specialized management, strategic, economic, and brand consulting services. The company was founded by Henry W. Marsh and Donald R. McLennan in 1871 and is headquartered in New York, NY. 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