SpaceX shares soar 30% midday, vaulting it to top six most valuable U.S. companies (opens original article in a new tab)

SpaceX's stock surged 30% midday after its IPO, reaching a $2.3 trillion market cap and becoming the sixth most valuable U.S. company.

• SpaceX's stock opened at $150 per share, up 11% from its IPO price of $135
• The company's market cap reached $2.3 trillion, making it the sixth most valuable U.S. public company
• SpaceX's IPO was oversubscribed 4x, with only 4% of shares available for public trading