Why Duolingo Stock Flew 34% Higher in February

Shares of Duolingo (DUOL -4.11%) rose by 33.6% in February, according to data from S&P Global Market Intelligence. A thoroughly Street-thumping earnings report erased the language-learning expert's prior price drop, which started around the holidays.Duolingo's Q4 by the numbersYour average Wall Street analyst expected the company would report fourth-quarter earnings of roughly $0.17 per diluted share on sales near $148 million. In actuality, it generated earnings of $0.26 per share on revenue of $151 millio ...