Why Interactive Brokers Stock Popped on Friday

Does Interactive Brokers stock cost too much?Online stockbroker Interactive Brokers Group (IBKR 7.65%) soared to close up 7.65% on Friday after beating on both the top and bottom lines Thursday evening.Heading into the quarter, analysts forecast Interactive Brokers would earn $0.45 per share (adjusted for one-time items) on sales of just under $1.4 billion. In fact, the company earned $0.51 per share -- generally accepted accounting principles (GAAP) -- and its sales were just under $1.5 billion. Interacti ...