SpaceX’s IPO is stirring controversy. But its technology is already changing lives in places the internet never reached.

SpaceX’s first day on the stock market transformed the startup into one of the world’s most-valuable public companies, handed buyers of the IPO a 19% return and turned its founder Elon Musk into the world’s first trillionaire.

After what some may consider a ho-hum open, SpaceX's stock has been steadily climbing and is now more than 20% above its IPO price. The first trade was at $150, but that was the absolute low for the stock,

SpaceX jumped as much as 30% in its Nasdaq debut on Friday before finishing up 19%, as investors piled into the world's largest IPO and bet on Elon Musk's sprawling empire spanning rockets, internet service and AI.

Shares of SpaceX, trading under the ticker SPCX, closed the day at $160.95, 19% above the offering price, transforming it into one of the world’s valuable companies with a $2.2 trillion market cap. The IPO also made the 54-year-old Musk the world’s first trillionaire.

SpaceX's stock opened near its low of the day, and while it did a bit of seesawing through the afternoon, it spent most of the day

Musk is now worth more than the world’s next four richest people combined: Google founders Page and Sergey Brin; Jeff Bezos, Amazon’s founder and executive chairman who also o

SpaceX launched onto Wall Street on Friday with the largest initial public offering in history. CBS News MoneyWatch correspondent Kelly O'Grady has the details.