Elon Musk, world’s richest person.

A statement that seemed outlandish one year ago became plausible, then almost inevitable as Tesla Inc.’s share price climbed higher and higher in 2020.

On Thursday it finally happened. The electric-automaker’s shares surged 7.9%, boosting Musk past Amazon.com Inc. founder Jeff Bezos on the Bloomberg Billionaires Index, a ranking of the world’s 500 wealthiest people. Musk is worth $194.8 billion, or $9.5 billion more than Bezos, whose Blue Origin is a rival to Musk’s Space Exploration Technologies Ltd., or SpaceX, in the private space race.