source:[1] Why Are Duolingo (DUOL) Shares Soaring Today (https://finance.yahoo.com/news/why-duolingo-d ...)[2] Duolingo (DUOL) Stock Trades Down, Here Is Why - TradingView (https://vertexaisearch.cloud.google.com/groun ...)[3] Duolingo stock could see 10% EBITDA upside by 2027, Citizens JMP says - Investing.com (https://www.investing.com/news/stock-market-n ...)