Airbus ( EADSY 3.59%) stock rose strongly on Thursday to close the day up 3.7%, on some disturbing news for a competitor.

With shares of AeroVironment now up 76% for the year, it seems that investors may want to watch the stock from a distance ...

Shares of the world's largest education app, Duolingo ( DUOL 0.21%), were down 14% this week as of 2:30 p.m. ET Thursday, according to data provided by S&P Global Market Intelligence. The main reason ...