Shares in new trillionaire Elon Musk's SpaceX jumped as much as 30 percent on their trading debut.

SpaceX prices the largest IPO in history at $135 per share, targeting a $75 billion raise and a $1.8 trillion valuation as Musk nears trillionaire status.

At US$135 a share, the offering will raise US$75 billion, making it the biggest market debut in history.

SpaceX's record IPO positions it as a trillion-dollar company, marking a pivotal moment in the market and investor landscape.