Voyager Technologies Inc. shares gained as much as 139% in their debut after the company raised $383 million in an upsized US initial public offering.The Denver-based defense contractor’s stock traded at $69.

Voyager Technologies secured a valuation of $3.8 billion after the defense and space firm's shares more than doubled in their U.S. debut, signalling strong interest in the sector expected to thrive under the Trump administration.

Voyager Technologies debuted on the New York Stock Exchange June 11, raising nearly $383 million in an upsized IPO that investors hope will spur more space-focused companies to go public.