The Bloomberg Billionaires Index is a daily ranking of the world's richest people.[1] The index debuted in March 2012 and tracks the net worth of the 500 wealthiest people on the planet.[2][3] It draws information from "action in the stock market, economic indicators and news reports," features a profile of each billionaire, and includes a tool that allows users to compare the fortunes of multiple billionaires. The index is updated every day at the close of trading in New York.[4]