Duolingo (DUOL) shares were up about 6% in Tuesday trading after Evercore ISI upgraded the stock to outperform from in-line and raised its price target to $210 from $105.
Trading volume stood at more than 1.4 million shares, compared with a daily average of about 1.3 million.
Price: $157.23, Change: $+8.87, Percent Change: +5.98%