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 NASDAQ:ALT NYSE:AMT 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 VolumeALTAltimmune$3.63+1.1%$3.79$2.90▼$11.16$316.84M0.182.38 million shs1.92 million shsAMTAmerican Tower$194.61+1.1%$209.75$172.51▼$241.46$90.14B0.862.78 million shs3.25 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 PerformanceALTAltimmune+1.11%-3.97%0.00%-46.46%-52.11%AMTAmerican Tower+1.33%+0.04%-5.62%-9.69%-19.02%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeALTAltimmune$3.63+1.1%$3.79$2.90▼$11.16$316.84M0.182.38 million shs1.92 million shsAMTAmerican Tower$194.61+1.1%$209.75$172.51▼$241.46$90.14B0.862.78 million shs3.25 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 PerformanceALTAltimmune+1.11%-3.97%0.00%-46.46%-52.11%AMTAmerican Tower+1.33%+0.04%-5.62%-9.69%-19.02%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceALTAltimmune 2.57Moderate Buy$17.40379.34% UpsideAMTAmerican Tower 2.94Moderate Buy$244.7325.76% UpsideCurrent Analyst Ratings BreakdownLatest AZV, ADR, AMT, and ALT Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails8/18/2025AMTAmerican TowerBarclaysSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingBoost Price TargetOverweight$246.00 ➝ $250.008/13/2025ALTAltimmuneHC WainwrightSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingBuy$12.008/13/2025ALTAltimmuneUBS GroupSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetBuy$26.00 ➝ $24.008/13/2025ALTAltimmuneB. RileySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetBuy$20.00 ➝ $18.007/31/2025AMTAmerican TowerRoyal Bank Of CanadaSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingBoost Price TargetOutperform$250.00 ➝ $260.007/30/2025AMTAmerican TowerHsbc Global ResSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeStrong-Buy ➝ Hold7/30/2025AMTAmerican TowerRaymond James FinancialSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingSet Price TargetStrong-Buy$251.00 ➝ $250.007/30/2025AMTAmerican TowerWells Fargo & CompanySubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingLower Price TargetOverweight$240.00 ➝ $230.007/30/2025AMTAmerican TowerJPMorgan Chase & Co.Subscribe to MarketBeat All Access for the firm's recommendation accuracy ratingBoost Price TargetOverweight$250.00 ➝ $255.007/30/2025AMTAmerican TowerBMO Capital MarketsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingOutperform$250.00 ➝ $245.007/30/2025AMTAmerican TowerHSBCSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeBuy ➝ Hold$235.00(Data available from 9/17/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookALTAltimmune$20K16,019.19N/AN/A$1.74 per share2.09AMTAmerican Tower$10.13B9.00$11.71 per share16.62$20.64 per share9.43Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateALTAltimmune-$95.06M-$1.18N/AN/AN/A-438,730.03%-62.63%-55.29%11/11/2025 (Estimated)AMTAmerican Tower$2.26B$2.7570.7719.461.1912.60%24.85%4.01%11/4/2025 (Estimated)Latest AZV, ADR, AMT, and ALT EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails8/12/2025Q2 2025ALTAltimmune-$0.32-$0.27+$0.05-$0.27$0.00 million$0.01 million7/29/2025Q2 2025AMTAmerican Tower$2.59$2.60+$0.01$2.60$2.58 billion$2.63 billionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthALTAltimmuneN/AN/AN/AN/AN/AAMTAmerican Tower$6.803.49%N/A247.27%1 YearsCompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioALTAltimmune0.0920.4420.44AMTAmerican Tower3.360.950.95Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipALTAltimmune78.05%AMTAmerican Tower92.69%Insider OwnershipCompanyInsider OwnershipALTAltimmune4.40%AMTAmerican Tower0.18%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableALTAltimmune5088.26 million84.37 millionOptionableAMTAmerican Tower4,691468.25 million467.41 millionOptionableMX1, ADR, AMT, and ALT HeadlinesRecent News About These CompaniesCzech National Bank Has $25.29 Million Stock Holdings in American Tower Corporation $AMT1 hour ago | marketbeat.comGradient Investments LLC Reduces Position in American Tower Corporation $AMT2 hours ago | marketbeat.comAmerican Tower Completes $587.8 Million Notes Offering4 hours ago | msn.comAmerican Tower Corporation (AMT) Presents at Global Communications Infrastructure Conference TranscriptSeptember 16 at 12:05 PM | seekingalpha.comValue Partners Investments Inc. Sells 1,353 Shares of American Tower Corporation $AMTSeptember 16 at 6:33 AM | marketbeat.comQuintet Private Bank Europe S.A. Raises Stock Position in American Tower Corporation $AMTSeptember 16 at 5:31 AM | marketbeat.comOMNI 360 Wealth Inc. Makes New $523,000 Investment in American Tower Corporation $AMTSeptember 16 at 5:28 AM | marketbeat.comS.E.E.D. Planning Group LLC Has $5.82 Million Stake in American Tower Corporation $AMTSeptember 16 at 5:21 AM | marketbeat.comAmerican Tower Corporation $AMT Shares Sold by Thurston Springer Miller Herd & Titak Inc.September 16 at 5:18 AM | marketbeat.comDouglas Lane & Associates LLC Reduces Holdings in American Tower Corporation $AMTSeptember 16 at 5:01 AM | marketbeat.comWesbanco Bank Inc. Has $3.67 Million Position in American Tower Corporation $AMTSeptember 16 at 4:50 AM | marketbeat.comCentral Pacific Bank Trust Division Has $833,000 Position in American Tower Corporation $AMTSeptember 16 at 4:27 AM | marketbeat.comJones Financial Companies Lllp Grows Position in American Tower Corporation $AMTSeptember 16 at 3:38 AM | marketbeat.comNetmore Assumes Commercial Operations of American Tower LoRaWAN Network in Brazil in Strategic TransitionSeptember 16 at 2:00 AM | businesswire.comNorway Savings Bank Sells 1,446 Shares of American Tower Corporation $AMTSeptember 15 at 6:52 AM | marketbeat.comFirst Financial Bank Trust Division Purchases 2,308 Shares of American Tower Corporation $AMTSeptember 15 at 6:24 AM | marketbeat.comAmerican Tower Corporation $AMT Stock Holdings Increased by LVM Capital Management Ltd. MISeptember 15 at 6:23 AM | marketbeat.comPark National Corp OH Has $10.17 Million Stock Position in American Tower Corporation $AMTSeptember 15 at 6:03 AM | marketbeat.comAmerican Tower Corporation $AMT Shares Acquired by Harbor Investment Advisory LLCSeptember 15 at 5:52 AM | marketbeat.comSwedbank AB Sells 35,335 Shares of American Tower Corporation $AMTSeptember 15 at 5:26 AM | marketbeat.comM&A News: American Tower (AMT) Seeks to Expand in France with TDF Infrastructure BidSeptember 15 at 5:11 AM | tipranks.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 Robotics Stocks at the Heart of the Robotics RevolutionBy Chris Markoch | August 21, 2025NIO Just Got Its Second Upgrade of the Month, and It’s BigBy Sam Quirke | August 28, 2025Chevron Stock Outlook: Dividend Growth Meets InflationBy Chris Markoch | August 28, 2025CoreWeave and Madrigal's Insider Trades Flash Bullish SignalsBy Leo Miller | September 10, 2025AZV, ADR, AMT, and ALT Company DescriptionsAltimmune NASDAQ:ALT$3.63 +0.04 (+1.11%) Closing price 09/16/2025 04:00 PM EasternExtended Trading$3.66 +0.03 (+0.72%) As of 05:15 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.Altimmune, Inc., a clinical stage biopharmaceutical company, focuses on developing treatments for obesity and liver diseases. The company's lead product candidate, pemvidutide, a GLP-1/glucagon dual receptor agonist that is in Phase 2 trial for the treatment of obesity and metabolic dysfunction-associated steatohepatitis. It is also developing HepTcell, an immunotherapeutic product candidate, which is in Phase 2 clinical trial for patients chronically infected with the hepatitis B virus. The company was formerly known as Vaxin Inc. and changed its name to Altimmune, Inc. in September 2015. Altimmune, Inc. was founded in 1997 is headquartered in Gaithersburg, Maryland.American Tower NYSE:AMT$194.61 +2.11 (+1.10%) Closing price 09/16/2025 03:59 PM EasternExtended Trading$196.78 +2.16 (+1.11%) As of 06:15 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.American Tower, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of over 224,000 communications sites and a highly interconnected footprint of U.S. data center facilities. 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