Trader Radar - Thursday Jan. 31st

Q: On Fast Money’s trader radar we look at the stock that was lighting up screens across Wall Street. This company, Thursday, announced plans to buy, a leading audio content provider of books and magazines such as the New Yorker, adding to its plethora of online retail offerings, from books to automobiles at the click of a mouse. As the largest retailer of this kind, it’s fitting that the namesake of this company is the world’s largest river by volume. Who is it?

A:Amazom is on Fast Money’s trader radar. This internet retail giant traded five times its average daily volume Thursday.