PALO ALTO, U.S. -- Elon Musk has become the fourth-richest person in the world following Monday's surge in Tesla stock.
From Bezos to Zuckerberg, tech magnates dominate rankings

Elon Musk has moved up the world's-richest rankings, thanks partly to speculation of Tesla joining the S&P 500. © Reuters
PALO ALTO, U.S. -- Elon Musk has become the fourth-richest person in the world following Monday's surge in Tesla stock.