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.$281.01-0.5%$298.41$275.56▼$351.23$72.43B0.731.29 million shs1.44 million shsAONAON$337.58-1.1%$360.70$323.73▼$412.97$73.60B0.891.05 million shs841,960 shsBROBrown & Brown$88.03-0.8%$93.58$86.79▼$125.68$29.28B0.792.67 million shs2.06 million shsMMCMarsh & McLennan Companies$186.59-0.8%$201.17$185.12▼$248.00$92.14B0.812.94 million shs2.12 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.-0.52%+0.11%-7.75%-10.83%-2.74%AONAON-1.16%-2.64%-4.61%-9.43%-5.78%BROBrown & Brown-0.89%+0.27%-5.62%-14.85%-16.97%MMCMarsh & McLennan Companies-0.77%-1.72%-6.55%-11.31%-16.51%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAJGArthur J. Gallagher & Co.$281.01-0.5%$298.41$275.56▼$351.23$72.43B0.731.29 million shs1.44 million shsAONAON$337.58-1.1%$360.70$323.73▼$412.97$73.60B0.891.05 million shs841,960 shsBROBrown & Brown$88.03-0.8%$93.58$86.79▼$125.68$29.28B0.792.67 million shs2.06 million shsMMCMarsh & McLennan Companies$186.59-0.8%$201.17$185.12▼$248.00$92.14B0.812.94 million shs2.12 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.-0.52%+0.11%-7.75%-10.83%-2.74%AONAON-1.16%-2.64%-4.61%-9.43%-5.78%BROBrown & Brown-0.89%+0.27%-5.62%-14.85%-16.97%MMCMarsh & McLennan Companies-0.77%-1.72%-6.55%-11.31%-16.51%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAJGArthur J. Gallagher & Co. 2.56Moderate Buy$331.4317.94% UpsideAONAON 2.76Moderate Buy$420.0024.42% UpsideBROBrown & Brown 2.38Hold$109.9224.88% UpsideMMCMarsh & McLennan Companies 2.44Hold$234.0725.45% UpsideCurrent Analyst Ratings BreakdownLatest MMC, AJG, AON, and BRO Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails10/24/2025AJGArthur J. Gallagher & Co.Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy (B-)10/24/2025AONAONWeiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy (B-)10/24/2025BROBrown & BrownWeiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingHold (C+)10/20/2025MMCMarsh & McLennan CompaniesThe Goldman Sachs GroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeSell ➝ Neutral$200.00 ➝ $195.0010/17/2025MMCMarsh & McLennan CompaniesEvercore ISISubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetOutperform$243.00 ➝ $237.0010/17/2025MMCMarsh & McLennan CompaniesWells Fargo & CompanySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetEqual Weight$222.00 ➝ $212.0010/17/2025MMCMarsh & McLennan CompaniesKeefe, Bruyette & WoodsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeUnderperform ➝ Market Perform$209.00 ➝ $191.0010/9/2025AONAONJPMorgan Chase & Co.Subscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetOverweight$436.00 ➝ $433.0010/9/2025MMCMarsh & McLennan CompaniesJPMorgan Chase & Co.Subscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeNeutral ➝ Overweight$248.00 ➝ $242.0010/8/2025AJGArthur J. Gallagher & Co.Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy (B-)10/8/2025AJGArthur J. Gallagher & Co.Wells Fargo & CompanySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingBoost Price TargetOverweight$365.00 ➝ $366.00(Data available from 10/25/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAJGArthur J. Gallagher & Co.$11.40B6.32$12.43 per share22.61$80.78 per share3.48AONAON$15.70B4.64$18.30 per share18.45$29.15 per share11.58BROBrown & Brown$4.81B6.04$4.49 per share19.62$22.51 per share3.91MMCMarsh & McLennan Companies$24.46B3.74$10.33 per share18.06$31.35 per share5.95Compare 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$7.0439.9221.19N/A14.54%13.17%3.72%10/30/2025 (Estimated)AONAON$2.65B$11.9428.2717.442.0115.54%50.91%7.00%10/31/2025 (Estimated)BROBrown & Brown$993M$3.4725.3719.392.0019.89%15.10%6.11%10/27/2025 (Estimated)MMCMarsh & McLennan Companies$4.06B$8.3422.3717.802.3515.60%31.79%8.14%N/ALatest MMC, AJG, AON, and BRO EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails10/31/2025Q3 2025AONAON$2.89N/AN/AN/A$3.97 billionN/A10/30/2025Q3 2025AJGArthur J. Gallagher & Co.$2.45N/AN/AN/A$3.34 billionN/A10/27/2025Q3 2025BROBrown & Brown$0.90N/AN/AN/A$1.54 billionN/A10/16/2025Q3 2025MMCMarsh & McLennan Companies$1.78$1.85+$0.07$1.51$6.34 billion$6.35 billion7/31/2025Q2 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 billionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAJGArthur J. Gallagher & Co.$2.600.93%N/A36.93%15 YearsAONAON$2.980.88%N/A24.96%N/ABROBrown & Brown$0.600.68%N/A17.29%N/AMMCMarsh & McLennan Companies$3.601.93%N/A43.17%15 YearsLatest MMC, AJG, AON, and BRO DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date10/10/2025AONAONquarterly$0.74500.83%11/3/202511/3/202511/14/20259/17/2025MMCMarsh & McLennan Companiesquarterly$0.901.8%10/2/202510/2/202511/14/202510/22/2025BROBrown & Brownquarterly$0.16500.74%11/5/202511/5/202511/12/20257/30/2025AJGArthur J. Gallagher & Co.quarterly$0.650.87%9/5/20259/5/20259/19/2025(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 Companies1.191.121.12Compare 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 Companies90,000489.91 million488.20 millionOptionableMMC, AJG, AON, and BRO HeadlinesRecent News About These CompaniesBig Banks Are Setting the Tone as Earnings Season Kicks Off (MMC)...October 25 at 10:34 AM | marketbeat.comCantor Fitzgerald Issues Positive Outlook for MMC EarningsOctober 25 at 2:17 AM | americanbankingnews.comHow Recent Developments Are Shaping the Marsh McLennan Investment StoryOctober 24 at 6:36 PM | finance.yahoo.comR Squared Ltd Purchases Shares of 5,635 Marsh & McLennan Companies, Inc. $MMCOctober 24 at 7:58 AM | marketbeat.comOpes Wealth Management LLC Takes Position in Marsh & McLennan Companies, Inc. $MMCOctober 24 at 7:42 AM | marketbeat.comCarnegie Investment Counsel Acquires 8,850 Shares of Marsh & McLennan Companies, Inc. $MMCOctober 24 at 7:28 AM | marketbeat.comFirst Citizens Bank & Trust Co. Has $2.39 Million Stock Position in Marsh & McLennan Companies, Inc. $MMCOctober 24 at 6:36 AM | marketbeat.comFY2026 EPS Estimates for MMC Cut by Cantor FitzgeraldOctober 24 at 3:21 AM | americanbankingnews.comGlobal Commercial Insurance Rates Fall 4% in Q3 2025, Marking the Fifth Consecutive Quarterly DecreaseOctober 23 at 12:34 PM | businesswire.comCadinha & Co. LLC Takes Position in Marsh & McLennan Companies, Inc. $MMCOctober 23 at 9:31 AM | marketbeat.comReliant Investment Management LLC Lowers Holdings in Marsh & McLennan Companies, Inc. $MMCOctober 23 at 8:43 AM | marketbeat.comFY2025 Earnings Estimate for MMC Issued By Cantor FitzgeraldOctober 23 at 6:57 AM | marketbeat.comExencial Wealth Advisors LLC Reduces Position in Marsh & McLennan Companies, Inc. $MMCOctober 23 at 6:29 AM | marketbeat.comWhat is Roth Capital's Estimate for MMC Q1 Earnings?October 23 at 3:51 AM | americanbankingnews.comEthic Inc. Has $14.86 Million Holdings in Marsh & McLennan Companies, Inc. $MMCOctober 22 at 9:39 AM | marketbeat.comMarsh & McLennan Companies, Inc. $MMC is Birch Hill Investment Advisors LLC's 4th Largest PositionOctober 22 at 8:42 AM | marketbeat.comEquities Analysts Issue Forecasts for MMC FY2026 EarningsOctober 22 at 8:20 AM | marketbeat.comRoth Capital Brokers Increase Earnings Estimates for MMCOctober 22 at 7:29 AM | marketbeat.comCitizens & Northern Corp Reduces Stock Position in Marsh & McLennan Companies, Inc. $MMCOctober 22 at 7:16 AM | marketbeat.comBTS Asset Management Inc. Invests $473,000 in Marsh & McLennan Companies, Inc. $MMCOctober 22 at 6:57 AM | marketbeat.comMarsh & McLennan Companies (NYSE:MMC) Raised to "Neutral" at The Goldman Sachs GroupOctober 22 at 2:43 AM | americanbankingnews.comNew MarketBeat Followers Over TimeMedia Sentiment Over Time Top HeadlinesView All HeadlinesSoundHound Breaks Critical Resistance: How High Can It Get Now?By Thomas Hughes | September 28, 2025October’s Top 5 Stocks Poised for Big BreakoutsBy Thomas Hughes | October 1, 2025Datavault AI: The New AI Contender Backed by Big FundingBy Jeffrey Neal Johnson | October 1, 2025Insider Sales Jump at Broadcom and CoreWeave: Red Flag Ahead?By Leo Miller | October 6, 20253 Oversold Large-Caps That Look Ripe for a ReboundBy Sam Quirke | October 20, 2025MMC, AJG, AON, and BRO Company DescriptionsArthur J. Gallagher & Co. NYSE:AJG$281.01 -1.48 (-0.52%) Closing price 10/24/2025 03:59 PM EasternExtended Trading$283.13 +2.12 (+0.76%) As of 10/24/2025 07:24 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$337.58 -3.77 (-1.11%) Closing price 10/24/2025 03:59 PM EasternExtended Trading$337.67 +0.09 (+0.03%) As of 10/24/2025 07:51 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$88.02 -0.75 (-0.84%) Closing price 10/24/2025 03:59 PM EasternExtended Trading$88.70 +0.67 (+0.77%) As of 10/24/2025 07:54 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$186.59 -1.49 (-0.79%) Closing price 10/24/2025 03:59 PM EasternExtended Trading$186.28 -0.30 (-0.16%) As of 10/24/2025 07:55 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.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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