Bloomberg Billionaires Index

The Bloomberg Billionaires Index, launched in March 2012, is a daily ranking of the world's 500 richest people based on their net worth. 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.