Shares of Interactive Brokers Group (IBKR) have surged 41.8% this year. This impressive rise has significantly outpaced the 8.8% rally of the industry it belongs to and the 12.2% growth of the Zacks S&P 500 composite.When compared with its peers in the brokerage space, IBKR’s performance is notably stronger. Charles Schwab (SCHW) has lost 9.2% and LPL Financial (LPLA) stock is down 12.4% in the same timeframe.Year-to-Date Price Performance Image Source: Zacks Investment Research The year has been a good one ...