Amazon founder and CEO Jeff Bezos became the richest man in the world on Thursday morning, when a sudden surge in Amazon stock made him $1.5 billion overnight. His fortune grew to over $90 billion that day.
For several hours, Bezos was the richest person on earth, surpassing Microsoft founder Bill Gates.
He lost the title later in the day when Amazon's stock dropped, returning him to second place, with a net worth just below $90 billion.