SpaceX shares soar 30% midday, vaulting it to top six most valuable U.S. companies

SpaceX lifted off on its first day as a public company, immediately jumping to $150 a share after it began trading on the Nasdaq, around 11% higher than the $135 figure at which it officially priced its IPO on Thursday. The stock price reached as high as $176 in midday trading, pushing the company’s market capitalization to nearly $2.3 trillion, making SpaceX the sixth most valuable public company in the U.S. The stock pop isn’t a surprise. …