GitLab shares opened about 22 percent above their offer price in their Nasdaq debut on Thursday, giving the software development platform a market capitalisation of US$13.48 billion (A$18.18 billion).
The company’s stock opened at US$94.25, compared with the initial public offering price of US$77 per share.
The company, whose customers include Nvidia, Siemens and Goldman Sachs, sold 8.42 million shares in its IPO.
A selling stockholder affiliated with co-founder and Chief Executive Officer Sytse Sijbrandij sold 1.98 million shares.
The IPO raised nearly US$801 million in total. It was priced above the higher end of the US$66 to US$69 price range GitLab had marketed earlier.
Software and technology companies such as UiPath and Coupang have made strong U.S. market debuts in the past year, thanks to robust investor appetite for high-growth companies.
But the IPO market has slowed in recent weeks as concerns over inflation and choppy trading forced some companies to delay their listing plans.
Goldman Sachs, JP Morgan and BofA Securities were the lead underwriters for GitLab’s offering.