Musk's SpaceX set to make biggest-ever initial public offering on Wall Street

Summary

Elon Musk's space transport company SpaceX is set to begin trading on the US market on Friday with an offering of more than 555 million shares priced at at $135 each. The move is expected to place SpaceX in the top 10 of Wall Street's biggest companies and make Musk the world's first trillionaire.