Interactive Brokers to join S&P 500, replacing Walgreens

In this photo illustration, the Interactive Brokers LLC logo seen displayed on a smartphone.S&P Dow Jones Indices said Monday that it will add Interactive Brokers to the S&P 500 Index at the opening of trading on Thursday. The brokerage service is replacing Walgreens Boots Alliance, which is being taken private in a deal with Sycamore Partners that is expected to close soon. Interactive Brokers shares jumped nearly 5% in after-hours trading on the news. The stock has doubled over the past year, and is up 42 ...