The richest people got even richer in 2013, adding $524 billion to their collective net worth, according to a ranking of the world's 300 wealthiest individuals.
The aggregate net worth of the world's top billionaires stood at $3.7 trillion at the market close Dec. 31, according to the Bloomberg Billionaires Index. The biggest gains came in the technology industry, which soared 28% during the year. Of the 300 people who appeared on the final ranking of 2013, only 70 registered a net loss for the 12-month period.
Bill Gates, founder and chairman of
Gates recaptured the title of world's richest person May 16 from Mexican investor
Most of Gates' assets are held in Cascade Investment, an entity through which he owns stakes in about three dozen publicly traded companies and several closely held businesses, including Four Seasons Hotels & Resorts and Corbis Corp., a photo-archive company. Less than a quarter of Gates' fortune is held in Microsoft. He has donated $28 billion to the Bill & Melinda Gates Foundation.
Sheldon Adelson, founder of