Interactive Brokers Group, Inc. (NASDAQ:IBKR) shares slipped in Tuesday's extended trading after the company released its fourth quarter earnings report, despite beating estimates on the top and bottom lines. Here's a look at the key figures from the quarter. IBKR stock is moving. Watch the price action here.The Details: Interactive Brokers reported quarterly earnings of 65 cents per share, which beat the consensus estimate of 59 cents, according to estimates from Benzinga Pro.Quarterly revenue came in at $ ...