(Bloomberg) -- Elon Musk's net worth on the Bloomberg Billionaires Index hit $21.3 billion after Space Exploration Technologies Corp.'s most recent fundraising made it the world's fifth-most valuable startup. The closely held rocket company was valued at around $21 billion, according to documents reviewed by Equidate last week, up from $12 billion in 2015. The increase added $4 billion to Musk's fortune, which received a further boost Thursday when his Tesla Inc. stake rose by about $800 million as investors cheered the carmaker's second-quarter results.
--With assistance from Dana Hull
To contact the reporter on this story: Tom Metcalf in New York at tmetcalf7@bloomberg.net.
To contact the editors responsible for this story: Robert LaFranco at rlafranco@bloomberg.net, Sophie Caronello
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