
Burlington Resources is exiting from the S&P index since they are in the process of being acquired by another S&P 500 constituent, ConocoPhillips.
The inclusion into the S&P 500 means many portfolio managers will have to add Google shares to their holdings. Many index funds base investments on whether a stock is included in the S&P 500. Google shares are already up 9 percent.
Source: FT.com | USAToday