Forbes is out with its annual list of the wealthiest people on the planet.
Microsoft founder Bill Gates remained in the top spot for the second year in a row, having added $US3.2 billion to his personal wealth.
Tech tycoons continued to dominate, with Larry Ellison, Mark Zuckerberg, Jeff Bezos, Larry Page, and Sergey Brin all appearing in the top 20. With the boom in Silicon Valley, Forbes notes that California is now home to 131 billionaires, “more than any other country besides China and the US.”
You can see Forbes’ complete billionaires list here; we’re taking a closer look at the top 20.
Net worth: $US31.4 billion
Lost $US6.6 billion since 2013; dropped 10 spots on the Forbes list
Shares of casino tycoon Sheldon Adelson's Las Vegas Sands Corp. were down 30% this year, largely due to a crackdown in Macau, where the company runs several properties.
Net worth: $US33.3 billion
Gained $US2.3 billion since 2014; jumped 3 spots on the Forbes list
The richest man in Asia, Ka-Shing currently serves as chairman of Hutchison Whampoa, a conglomerate with interests in shipping and construction. He also holds a major real estate portfolio.
Net worth: $US34.8 billion
Gained $US2.8 billion since 2014; jumped 3 spots on the Forbes list
Bezos is the founder and CEO of e-commerce giant Amazon.
Disclosure: Bezos is an investor in Business Insider.
Net worth: $US37.2 billion
Gained $US3.7 billion since 2014; jumped 2 spots on the Forbes list
Arnault and his family hold a 46% stake in LVMH Moet Hennessy Louis Vuitton, the world's largest maker of luxury goods.
Net worth: $US39.1 billion
Gained $US4.9 billion since 2014; jumped 2 spots on the Forbes list
A member of the founding family of Walmart, Walton has served as the head of the retail giant's board since 1992.
Net worth: $US40.1 billion
Gained $US5.6 billion since 2014; jumped 1 spot on the Forbes list
Bettencourt is the heiress to the L'Oreal fortune, and while she's still technically Europe's richest woman, a judge in October 2012 ordered that the elderly billionaire's fortune be placed under the legal control of her daughter and grandsons. The court case over her wealth is ongoing.
Net worth: $US40.6 billion
Gained $US5.9 billion since 2014; jumped 1 spot on the Forbes list
Another heir to the Walmart fortune, Jim is Chairman and CEO of the family's Arvest Bank, which has branches in Arkansas, Kansas, Oklahoma and Missouri.
Net worth: $US41.7 billion
Gained $US5 billion since 2014; jumped 1 spot on the Forbes list
Christy Walton inherited her husband John Walton's fortune when he passed away in 2005. John Walton's father was Walmart founder Sam Walton.
Net worth: $US42.9 billion
Gained $US2.9 billion since 2014; no change on the Forbes list
David, along with brother Charles, is a co-owner and the executive vice president of Koch Industries, one of the largest privately-held companies in the world.
Net worth: $US64.5 billion
Gained $US.5 billion since 2014; dropped 1 spot on the Forbes list
Ortega is the former chairman of Inditex, a conglomerate whose holdings include global fashion retailer Zara.
Net worth: $US72.7 billion
Gained $US14.5 billion since 2014; jumped 1 spot on the Forbes list
Buffett is the CEO of Berkshire Hathaway, as well as the company's primary shareholder. The company had a stellar year, leading to huge gains for Buffett.
Net worth: $US77.1 billion
Gained $US5.1 billion since 2014; no change on the Forbes list
Slim Helu came from humble beginnings. His father was an immigrant shoe maker and Slim built his fortune from almost nothing. And although he has billions now, friends say he wears cheap suits and prefers pen and paper to fancy computers.
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