Duolingo's (DUOL) shares were up more than 8% in Tuesday trading after D.A. Davidson upgraded the company's stock to buy from neutral and raised its price target to $160 from $130.
Trading volume stood at over 965,000 shares, compared with a daily average of about 1.4 million.
Price: $140.64, Change: $+10.48, Percent Change: +8.05%