Trader Radar - Tuesday March 17th

Q: On Fast Money’s trader radar we look at the stock that was lighting up screens across Wall Street. Founded in 1976 as Price Club, this company then catered only to small businesses. It has since turned into an international chain, giving its loyal members warehouse prices. And today this discount retailer gave investors top-shelf returns, as shares soared on an upgrade at Jefferies. Who is it?

A: On the trader radar tonight we’re watching Costco ! The largest US warehouse-club chain was among the most active names on the Nasdaq today.