Compare Stocks Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities. 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:MMC 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.$302.23-0.2%$303.83$274.25▼$351.23$77.63B0.721.39 million shs1.67 million shsAONAON$371.72+1.3%$361.45$323.73▼$412.97$79.13B0.871.19 million shs1.24 million shsBROBrown & Brown$95.40-1.6%$100.34$90.38▼$125.68$31.98B0.812.60 million shs2.46 million shsMMCMarsh & McLennan Companies$205.48-0.2%$208.83$196.27▼$248.00$101.18B0.811.99 million shs2.89 million shsTen Starter Stocks For Beginners to Buy NowJust getting into the stock market? These 10 simple stocks can help beginning investors build long-term wealth without knowing options, technicals, or other advanced strategies.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAJGArthur J. Gallagher & Co.-0.17%+0.79%+6.40%-10.19%+3.30%AONAON+1.24%+0.66%+5.28%-0.35%+8.15%BROBrown & Brown-1.67%-0.59%+3.45%-14.24%-9.25%MMCMarsh & McLennan Companies-0.11%-0.49%+3.90%-11.56%-9.68%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAJGArthur J. Gallagher & Co.4.4771 of 5 stars2.23.03.33.02.51.72.5AONAON4.7027 of 5 stars3.35.01.72.31.81.72.5BROBrown & Brown4.7772 of 5 stars3.23.01.72.52.14.22.5MMCMarsh & McLennan Companies4.9652 of 5 stars3.15.04.23.23.61.72.5Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAJGArthur J. Gallagher & Co. 2.38Hold$331.079.54% UpsideAONAON 2.53Moderate Buy$412.6911.02% UpsideBROBrown & Brown 2.40Hold$112.6418.07% UpsideMMCMarsh & McLennan Companies 2.24Hold$238.7616.20% UpsideCurrent Analyst Ratings BreakdownLatest MMC, AJG, AON, and BRO Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails8/18/2025AONAONMorgan StanleySubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingCautious ➝ Cautious8/18/2025AONAONMorgan StanleySubscribe to MarketBeat All Access for the recommendation accuracy ratingBoost Price TargetEqual Weight ➝ Equal Weight$365.00 ➝ $385.008/18/2025BROBrown & BrownMorgan StanleySubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetEqual Weight ➝ Equal Weight$109.00 ➝ $105.008/18/2025MMCMarsh & McLennan CompaniesMorgan StanleySubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetEqual Weight ➝ Equal Weight$225.00 ➝ $220.008/13/2025AJGArthur J. Gallagher & Co.Cantor FitzgeraldSubscribe to MarketBeat All Access for the recommendation accuracy ratingUpgradeStrong-Buy8/13/2025AJGArthur J. Gallagher & Co.CitigroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageNeutral$317.008/13/2025AONAONCantor FitzgeraldSubscribe to MarketBeat All Access for the recommendation accuracy ratingUpgradeStrong-Buy8/13/2025AONAONCitigroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageNeutral$402.008/13/2025BROBrown & BrownWells Fargo & CompanySubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeOverweight ➝ Equal Weight$104.00 ➝ $101.008/13/2025BROBrown & BrownCitigroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageBuy$112.008/13/2025MMCMarsh & McLennan CompaniesCantor FitzgeraldSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageOverweight$256.00(Data available from 9/3/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAJGArthur J. Gallagher & Co.$11.40B6.80$12.47 per share24.23$89.92 per share3.36AONAON$15.70B5.11$18.75 per share19.83$37.14 per share10.01BROBrown & Brown$4.81B6.55$4.45 per share21.43$35.22 per share2.71MMCMarsh & McLennan Companies$24.46B4.13$10.40 per share19.76$32.50 per share6.32Compare 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.$1.46B$7.0442.9322.79N/A14.54%13.17%3.72%10/23/2025 (Estimated)AONAON$2.65B$11.9431.1319.202.1715.54%50.91%7.00%10/24/2025 (Estimated)BROBrown & Brown$993M$3.4727.4921.012.2119.89%15.10%6.11%10/27/2025 (Estimated)MMCMarsh & McLennan Companies$4.06B$8.3424.6419.612.5816.00%31.90%8.29%10/16/2025 (Estimated)Latest MMC, AJG, AON, and BRO EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails7/31/2025Q2 2025AJGArthur J. Gallagher & Co.$2.36$2.33-$0.03$1.40$3.20 billion$3.18 billion7/28/2025Q2 2025BROBrown & Brown$0.99$1.03+$0.04$0.78$1.28 billion$1.29 billion7/25/2025Q2 2025AONAON$3.40$3.49+$0.09$2.66$4.16 billion$4.16 billion7/17/2025Q2 2025MMCMarsh & McLennan Companies$2.66$2.72+$0.06$2.45$6.92 billion$6.97 billionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAJGArthur J. Gallagher & Co.$2.600.86%N/A36.93%15 YearsAONAON$2.980.80%N/A24.96%N/ABROBrown & Brown$0.600.63%N/A17.29%N/AMMCMarsh & McLennan Companies$3.601.75%N/A43.17%15 YearsLatest MMC, AJG, AON, and BRO DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date7/30/2025AJGArthur J. Gallagher & Co.quarterly$0.650.91%9/5/20259/5/20259/19/20257/23/2025BROBrown & Brownquarterly$0.150.58%8/13/20258/13/20258/20/20257/11/2025AONAONquarterly$0.74500.84%8/1/20258/1/20258/15/20257/9/2025MMCMarsh & McLennan Companiesquarterly$0.901.68%7/24/20257/24/20258/15/2025(Data available from 1/1/2013 forward)Compare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAJGArthur J. Gallagher & Co.0.521.361.36AONAON1.931.521.52BROBrown & Brown0.646.726.72MMCMarsh & McLennan Companies1.191.201.20Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAJGArthur J. Gallagher & Co.85.53%AONAON86.14%BROBrown & Brown71.01%MMCMarsh & McLennan Companies87.99%Insider OwnershipCompanyInsider OwnershipAJGArthur J. Gallagher & Co.1.30%AONAON1.10%BROBrown & Brown15.59%MMCMarsh & McLennan Companies0.35%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAJGArthur J. Gallagher & Co.56,000256.40 million253.07 millionOptionableAONAON60,000215.63 million213.26 millionOptionableBROBrown & Brown17,403329.84 million278.42 millionOptionableMMCMarsh & McLennan Companies90,000491.62 million489.90 millionOptionableMMC, AJG, AON, and BRO HeadlinesRecent News About These CompaniesCanada Pension Plan Investment Board Has $32.25 Million Holdings in Marsh & McLennan Companies, Inc. $MMC1 hour ago | marketbeat.comTrexquant Investment LP Acquires New Shares in Marsh & McLennan Companies, Inc. $MMC2 hours ago | marketbeat.comMarsh McLennan Agency Acquires Robins InsuranceSeptember 2 at 1:15 PM | finance.yahoo.comMarsh & McLennan acquires Robins InsuranceSeptember 2 at 1:15 PM | msn.comRoyal Bank of Canada Purchases 198,702 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 2 at 9:39 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Stake Reduced by Baird Financial Group Inc.September 2 at 6:41 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Position Boosted by Vident Advisory LLCSeptember 2 at 6:25 AM | marketbeat.comPanagora Asset Management Inc. Acquires 103,274 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 1 at 6:11 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC is New Vernon Investment Management LLC's 5th Largest PositionSeptember 1 at 6:10 AM | marketbeat.comThe Manufacturers Life Insurance Company Sells 233,583 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 1 at 5:44 AM | marketbeat.comLandscape Capital Management L.L.C. Sells 5,468 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 1 at 5:17 AM | marketbeat.comParnassus Investments LLC Sells 771,664 Shares of Marsh & McLennan Companies, Inc. $MMCAugust 31 at 6:41 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Position Lessened by OMERS ADMINISTRATION CorpAugust 31 at 5:51 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Sold by Lansforsakringar Fondforvaltning AB publAugust 30, 2025 | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Sold by Beck Bode LLCAugust 30, 2025 | marketbeat.comGuggenheim Capital LLC Purchases 3,041 Shares of Marsh & McLennan Companies, Inc. $MMCAugust 30, 2025 | marketbeat.comIeq Capital LLC Increases Stock Holdings in Marsh & McLennan Companies, Inc. $MMCAugust 30, 2025 | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Sold by Gabelli Funds LLCAugust 30, 2025 | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Position Increased by FORA Capital LLCAugust 30, 2025 | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Stock Position Raised by CreativeOne Wealth LLCAugust 29, 2025 | marketbeat.comNicolet Bankshares Inc. Reduces Stake in Marsh & McLennan Companies, Inc. $MMCAugust 28, 2025 | marketbeat.comNew MarketBeat Followers Over TimeMedia Sentiment Over Time Top HeadlinesView All HeadlinesBuffett Makes Big Moves Outside of UNH: A Buy and Sell BreakdownBy Leo Miller | August 18, 20253 Companies That Will Profit From Trump's Semiconductor TariffsBy Jordan Chussler | August 14, 2025An Atomic Sized Surge Is Brewing for NuScale Power Stock PriceBy Thomas Hughes | August 11, 2025Amazon Stock Sets Up for Breakout After Bullish CrossoverBy Sam Quirke | August 21, 2025Why Arista's Blowout Q2 Is Good News for Chip-Giant BroadcomBy Leo Miller | August 18, 2025MMC, AJG, AON, and BRO Company DescriptionsArthur J. Gallagher & Co. NYSE:AJG$302.23 -0.52 (-0.17%) Closing price 09/2/2025 03:59 PM EasternExtended Trading$303.05 +0.82 (+0.27%) As of 05:44 AM 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 Polygon.io. 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$371.72 +4.72 (+1.29%) Closing price 09/2/2025 03:59 PM EasternExtended Trading$372.00 +0.28 (+0.08%) As of 04:59 AM 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 Polygon.io. 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$95.40 -1.55 (-1.59%) Closing price 09/2/2025 03:59 PM EasternExtended Trading$95.15 -0.25 (-0.27%) As of 09/2/2025 06:55 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 Polygon.io. 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:MMC$205.48 -0.33 (-0.16%) Closing price 09/2/2025 03:59 PM EasternExtended Trading$206.50 +1.03 (+0.50%) As of 04:07 AM 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 Polygon.io. 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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