Trader Radar - Tuesday July 29th

Q: On Fast Money’s trader radar we look at the stock that was lighting up screens across Wall Street. Right now we’ve got our eye on the world’s largest credit-card network. Originally called BankAmericard, the firm is the only form of electronic payment accepted at the Beijing Olympics . Today, the stock got the gold from a Wall Street analyst who said to buy shares before earnings Wednesday. Who is it?

A: On the trader radar tonight we’re watching Visa! The credit-card network was among the most active names on the NYSE today.