Tesla returns to the 'trillion dollar market value club'! Could the head of the US SEC be him? Tesla closed up over 8%, pushing its market value to break through the trillion dollar mark again and reach $1.03 trillion; This also made CEO Elon Musk's net worth surpass $300 billion for the first time in nearly three years. Since Trump's victory, Musk's personal wealth has grown more than any other person tracked by the Bloomberg Billionaires Index.