Uber Technologies Inc. CEO Dara Khosrowshahi, co-founders Ryan Graves and Garrett Camp, Chief Financial Officer Nelson Chai and NYSE President Stacey Cunningham pose together during the company's IPO on the floor of the New York Stock Exchange (NYSE) in New York, U.S., May 10, 2019. Uber Technologies Inc's conservative initial public offering could not keep its shares from sinking in their trading debut on Friday, fueling debate on Wall Street over whether the outcome of the most anticipated listing since Facebook Inc would weigh on other Silicon Valley unicorns. REUTERS/Brendan McDermid

Traders work near the post where Uber is traded on the floor at the New York Stock Exchange (NYSE) in New York, U.S., May 10, 2019. Uber considered going public for at least four years. Yet the ride-hailing company picked a week for its IPO plagued by market turbulence fueled by U.S.-China trade worries. Moreover, smaller rival Lyft Inc's shares plunged this week after its first earnings as a public company. REUTERS/Brendan McDermid

A screen displays the company logo and the trading information for Uber Technologies Inc. after the closing bell on the day of it's IPO at the New York Stock Exchange (NYSE) in New York, U.S., May 10, 2019. Uber was the biggest of a group of Silicon Valley startups that have spent years raising money in private rounds at record prices. Many of these companies are now looking to follow with their own IPO. Some, like Uber and Lyft, are unprofitable. REUTERS/Brendan McDermid

Traders gather at post where Uber Technologies Inc. holds it's IPO on the floor of the New York Stock Exchange (NYSE) in New York, U.S., May 10, 2019. Workplace messaging company Slack Technologies Inc plans to hold an investor presentation on Monday in advance of its direct listing next month. Grocery and food delivery platform Postmates, WeWork owner The We Company and online mattress retailer Casper Sleep are among startups seeking to launch IPOs this year. REUTERS/Brendan McDermid

Uber Technologies Inc. CEO Dara Khosrowshahi (L) stands on the trading floor of the New York Stock Exchange (NYSE) during the company's IPO in New York, U.S., May 10, 2019. Uber's shares ended the day down 7.6% at $41.57, even as the S&P 500 reversed losses to end in positive territory. Only about a fifth of IPOs have ended their first day of trading in the red in the last two years, according to Dealogic data. REUTERS/Andrew Kelly

Traders and company executives gather for the Uber Technologies Inc. IPO on the trading floor of the New York Stock Exchange (NYSE) in New York, U.S., May 10, 2019. Uber priced its IPO on Thursday at the low end of its targeted range, hoping that approach would spare it the trading plunge suffered by Lyft. Lyft ended down 6.9% on Friday, and is 28 percent below its IPO price. REUTERS/Brendan McDermid