Before we spend countless hours researching a company, we like to analyze what insiders, hedge funds and billionaire investors think of the stock first. This is a necessary first step in our investment process because our research has shown that the elite investors' consensus returns have been exceptional. In the following paragraphs, we find out what the billionaire investors and hedge funds think of Interactive Brokers Group, Inc. (NASDAQ:IBKR). Interactive Brokers Group, Inc. (NASDAQ:IBKR) was in 36 hedge funds' portfolios at the end of the second quarter of 2021. The all time high for this statistic is 37.