World's top 5 billionaires 2017

Richest Billionaires
Amazon CEO Jeff Bezos became the world's richest person on October 27 as Amazon's shares jumped 13 percent, to close at $1,100.95. He was also briefly the richest person in the world when the markets opened on July 27, 2017, according to Forbes. With a fortune of $90.6 billion, he became the first person to top a net worth of $90 billion. But by the time the markets closed, he had been dethroned again. While Forbes updates their list of the world's billionaires in real time as markets fluctuate, the magazine also releases a more static list each year. The total net worth of these money-makers when 2017's list was released in March was $7.67 trillion. Click through to see 2017's top 20 billionaires on the planet.
CREDIT: AP

Bill Gates (U.S.)
Co-founder, Microsoft

Age: 60
Net worth: $86 billion

Gates has held the No. 1 spot as the world's richest person for four years in a row, and for 18 out of the past 23 years.

CREDIT: Christof Stache/AFP/Getty Images

Warren Buffett (U.S.)
CEO, Berkshire Hathaway

Age: 85
Net worth: $75.6 billion

CREDIT: Jamie McCarthy/Getty Images

Jeff Bezos (U.S.)
CEO, Amazon

Age: 53
Net worth: $72.8 billion

CREDIT: Tommaso Boddi/AFP/Getty Images

Amancio Ortega (Spain)
Co-founder, Zara

Age: 81
Net worth: $71.3 billion

CREDIT: Xurxo Lobato/Getty

Mark Zuckerberg (U.S.)
Co-founder and CEO, Facebook

Age: 33
Net worth: $56 billion

CREDIT: Justin Sullivan/Getty Images