SpaceX, Elon Musk's rocket, satellite, and artificial intelligence-linked company, began trading on the stock market on Friday, in a debut that blasted off so successfully that it turned him into the world's first trillionaire.The stock opened at $150, above its IPO price of $135 per share, and climbed to $166 by about 12.20pm, making it the sixth largest US company by market value.

Rocketmaker SpaceX began trading on the Nasdaq Friday, boosting Musk’s fortune to an estimated $1.1 trillion.

The company offered 555,555,555 stocks at a price of $135 per share

Musk's fortunes were boosted from $813 billion to over $1 trillion, sending SpaceX into the ranks of the world's most valuable companies.