Interactive Brokers Group, Inc. (IBKR) is one of the stocks most watched by Zacks.com visitors lately. So, it might be a good idea to review some of the factors that might affect the near-term performance of the stock.Shares of this company have returned +13.4% over the past month versus the Zacks S&P 500 composite's +2.5% change. The Zacks Financial - Investment Bank industry, to which Interactive Brokers belongs, has gained 11.6% over this period. Now the key question is: Where could the stock be headed i ...