Elon Musk's net worth poised to sail past $1 trillion in SpaceX IPO

Elon Musk is photographed at SpaceX in Brownsville, Texas. Marvin Joseph | The Washington Post | Getty Images The world's richest person is on the doorstep of trillionaire status. SpaceX CEO Elon Musk owns a stake in his reusable rocket maker that's worth $866.5 billion on paper, according to the company's updated IPO prospectus published on Wednesday. SpaceX said it plans to price its upcoming IPO at $135 a share for a valuation of about $1.77 trillion. …