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.$297.27-1.1%$300.81$274.25▼$351.23$77.08B0.721.31 million shs1.30 million shsAONAON$372.120.0%$363.89$323.73▼$412.97$80.27B0.871.02 million shs844,376 shsBROBrown & Brown$93.61-0.7%$98.00$90.38▼$125.68$31.08B0.812.23 million shs1.46 million shsMMCMarsh & McLennan Companies$202.97-0.2%$206.85$196.27▼$248.00$100.03B0.811.86 million shs2.65 million shs The Best Nuclear Energy Stocks to BuyNuclear energy stocks are roaring. It's the hottest energy sector of the year. Cameco Corp, Paladin Energy, and BWX Technologies were all up more than 40% in 2024. The biggest market moves could still be ahead of us, and there are seven nuclear energy stocks that could rise much higher in the next several months. To unlock these tickers, enter your email address below.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAJGArthur J. Gallagher & Co.0.00%-0.58%+1.32%-6.04%+0.89%AONAON0.00%+0.56%+1.47%+5.52%+7.92%BROBrown & Brown0.00%-1.17%-1.61%-12.21%-7.04%MMCMarsh & McLennan Companies0.00%-0.28%-1.99%-6.55%-11.40%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAJGArthur J. Gallagher & Co.$297.27-1.1%$300.81$274.25▼$351.23$77.08B0.721.31 million shs1.30 million shsAONAON$372.120.0%$363.89$323.73▼$412.97$80.27B0.871.02 million shs844,376 shsBROBrown & Brown$93.61-0.7%$98.00$90.38▼$125.68$31.08B0.812.23 million shs1.46 million shsMMCMarsh & McLennan Companies$202.97-0.2%$206.85$196.27▼$248.00$100.03B0.811.86 million shs2.65 million shs The Best Nuclear Energy Stocks to BuyNuclear energy stocks are roaring. It's the hottest energy sector of the year. Cameco Corp, Paladin Energy, and BWX Technologies were all up more than 40% in 2024. The biggest market moves could still be ahead of us, and there are seven nuclear energy stocks that could rise much higher in the next several months. To unlock these tickers, enter your email address below.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAJGArthur J. Gallagher & Co.0.00%-0.58%+1.32%-6.04%+0.89%AONAON0.00%+0.56%+1.47%+5.52%+7.92%BROBrown & Brown0.00%-1.17%-1.61%-12.21%-7.04%MMCMarsh & McLennan Companies0.00%-0.28%-1.99%-6.55%-11.40%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAJGArthur J. Gallagher & Co. 2.44Hold$333.1312.06% UpsideAONAON 2.67Moderate Buy$415.5011.66% UpsideBROBrown & Brown 2.40Hold$112.6420.33% UpsideMMCMarsh & McLennan Companies 2.24Hold$238.7617.64% UpsideCurrent Analyst Ratings BreakdownLatest AJG, AON, BRO, and MMC Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails9/11/2025AONAONMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeEqual Weight ➝ Overweight$385.00 ➝ $430.009/3/2025AJGArthur J. Gallagher & Co.The Goldman Sachs GroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingInitiated CoverageBuy$344.008/18/2025AONAONMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingCautious8/18/2025AONAONMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingBoost Price TargetEqual Weight$365.00 ➝ $385.008/18/2025BROBrown & BrownMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetEqual Weight$109.00 ➝ $105.008/18/2025MMCMarsh & McLennan CompaniesMorgan StanleySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetEqual Weight$225.00 ➝ $220.008/13/2025AJGArthur J. Gallagher & Co.Cantor FitzgeraldSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeStrong-Buy8/13/2025AJGArthur J. Gallagher & Co.CitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingInitiated CoverageNeutral$317.008/13/2025AONAONCantor FitzgeraldSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeStrong-Buy8/13/2025AONAONCitigroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingInitiated CoverageNeutral$402.008/13/2025BROBrown & BrownWells Fargo & CompanySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeOverweight ➝ Equal Weight$104.00 ➝ $101.00(Data available from 9/14/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAJGArthur J. Gallagher & Co.$11.40B6.69$12.36 per share24.06$80.78 per share3.68AONAON$15.70B5.11$18.50 per share20.12$29.15 per share12.77BROBrown & Brown$4.81B6.43$4.49 per share20.83$22.51 per share4.16MMCMarsh & McLennan Companies$24.46B4.08$10.39 per share19.53$27.56 per share7.36Compare 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$7.0442.2322.42N/A14.54%13.17%3.72%10/23/2025 (Estimated)AONAON$2.65B$11.9431.1719.222.2115.54%50.91%7.00%10/24/2025 (Estimated)BROBrown & Brown$993M$3.4726.9820.622.1419.89%15.10%6.11%10/27/2025 (Estimated)MMCMarsh & McLennan Companies$4.06B$8.3424.3419.372.5616.00%31.90%8.29%10/16/2025 (Estimated)Latest AJG, AON, BRO, and MMC 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.$2.600.87%N/A36.93%15 YearsAONAON$2.980.80%N/A24.96%N/ABROBrown & Brown$0.600.64%N/A17.29%N/AMMCMarsh & McLennan Companies$3.601.77%N/A43.17%15 YearsLatest AJG, AON, BRO, and MMC DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date7/30/2025AJGArthur J. Gallagher & Co.quarterly$0.650.87%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.1.60%AONAON1.10%BROBrown & Brown17.02%MMCMarsh & McLennan Companies0.35%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAJGArthur J. Gallagher & Co.56,000256.40 million252.30 millionOptionableAONAON60,000215.63 million213.26 millionOptionableBROBrown & Brown17,403329.84 million273.70 millionOptionableMMCMarsh & McLennan Companies90,000491.62 million489.90 millionOptionableAJG, AON, BRO, and MMC HeadlinesRecent News About These Companies157,311 Shares in Marsh & McLennan Companies, Inc. $MMC Purchased by Strs Ohio1 hour ago | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Sold by Belpointe Asset Management LLC2 hours ago | marketbeat.comSCS Capital Management LLC Makes New $404,000 Investment in Marsh & McLennan Companies, Inc. $MMC2 hours ago | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Acquired by Integrity Alliance LLC.September 13 at 5:14 AM | marketbeat.comAcadian Asset Management LLC Lowers Stake in Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 9:16 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC Shares Sold by Intech Investment Management LLCSeptember 12 at 8:41 AM | marketbeat.comIlmarinen Mutual Pension Insurance Co Acquires 22,000 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 7:30 AM | marketbeat.comPlato Investment Management Ltd Reduces Position in Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 7:29 AM | marketbeat.comOptimize Financial Inc Acquires New Holdings in Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 6:41 AM | marketbeat.comKestra Investment Management LLC Reduces Stock Holdings in Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 5:11 AM | marketbeat.comTeza Capital Management LLC Sells 5,421 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 12 at 4:53 AM | marketbeat.comUBS AM A Distinct Business Unit of UBS Asset Management Americas LLC Sells 37,566 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 11 at 7:09 AM | marketbeat.comLegacy Advisory Services LLC Takes $330,000 Position in Marsh & McLennan Companies, Inc. $MMCSeptember 11 at 7:07 AM | marketbeat.comAmerican Trust Sells 5,749 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 11 at 6:18 AM | marketbeat.comMBB Public Markets I LLC Buys Shares of 1,440 Marsh & McLennan Companies, Inc. $MMCSeptember 10, 2025 | marketbeat.com90,232 Shares in Marsh & McLennan Companies, Inc. $MMC Acquired by Vancity Investment Management LtdSeptember 10, 2025 | marketbeat.comAscent Group LLC Has $5.16 Million Holdings in Marsh & McLennan Companies, Inc. $MMCSeptember 10, 2025 | marketbeat.comVoleon Capital Management LP Sells 1,267 Shares of Marsh & McLennan Companies, Inc. $MMCSeptember 10, 2025 | marketbeat.comMIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Grows Stock Position in Marsh & McLennan Companies, Inc. $MMCSeptember 10, 2025 | marketbeat.comAssessing Marsh & McLennan After 10% Drop and Solid Three-Year GainsSeptember 9, 2025 | finance.yahoo.com4 Insurance Brokerage Stocks to Watch Amid Increased DigitalizationSeptember 9, 2025 | zacks.comNew MarketBeat Followers Over TimeMedia Sentiment Over Time Top HeadlinesView All HeadlinesAmazon Stock Sets Up for Breakout After Bullish CrossoverBy Sam Quirke | August 21, 2025Broadcom Named in Apple’s $100B U.S. Investment PlanBy Leo Miller | August 22, 2025Alphabet’s Breakout Potential: From Laggard to AI LeaderBy Ryan Hasson | August 22, 2025Eyes on the Sky: AST SpaceMobile Prepares for Commercial LaunchBy Jordan Chussler | September 8, 2025Toll Brothers: A Great Buy and Hold Stock With Risks in 2025By Thomas Hughes | August 21, 2025AJG, AON, BRO, and MMC Company DescriptionsArthur J. Gallagher & Co. NYSE:AJG$297.27 -3.34 (-1.11%) Closing price 09/12/2025 03:59 PM EasternExtended Trading$298.26 +0.99 (+0.33%) As of 09/12/2025 06:42 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.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$372.12 -0.13 (-0.03%) Closing price 09/12/2025 03:59 PM EasternExtended Trading$372.12 0.00 (0.00%) As of 09/12/2025 06:21 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.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$93.61 -0.63 (-0.67%) Closing price 09/12/2025 03:59 PM EasternExtended Trading$93.66 +0.06 (+0.06%) As of 09/12/2025 06:30 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$202.97 -0.49 (-0.24%) Closing price 09/12/2025 03:59 PM EasternExtended Trading$202.22 -0.75 (-0.37%) As of 09/12/2025 04:32 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.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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