Uber's rocky trading debut ends with market cap below $70b

Uber's rocky trading debut ends with market cap below $70b

Dara Khosrowshahi rings the opening bell during Uber's initial public offering in New York on May 10. Photographer: Michael Nagle/Bloomberg

Uber Technologies Inc. slumped more than 7% in its trading debut after the biggest initial public offering of the year, ending the day below its last private value.