IPOs

Shares of Fitbit are up 55 percent in the first day of trading for the fitness tracking gear maker.

Shares of Party City jumped over 20 percent in their stock market debut Thursday.

GoDaddy hopes to raise up to $460 million in an initial public offering that is priced above an earlier estimate from the web hosting company.

While the initial public offering of burger chain Shake Shack was the center of attention Friday, a spate of other companies also made their public debuts.

Chinese e-commerce company Alibaba Group says its net income fell as it faced higher one-time costs but its adjusted earnings beat expectations.

Teekay Tankers Ltd. said Friday that it plans to raise at least $96 million, by selling 20 million of its shares for $4.80 per share, to help fund its purchase of five oil tankers.

Companies making their market debut on Wednesday saw mixed results.

Shares of New Relic and Hortonworks were the strongest midday performers Friday as seven companies priced their initial public offerings.

Shares of online lender LendingClub soared 56 percent in their stock market debut Thursday.

Virgin America begins selling shares to the public on Friday, and the timing of the IPO could hardly be better.

Shares rose of the three companies that began trading on Wednesday.

Shares in the owner of the Middle East's largest mall jumped over 12 percent in the first day of trading on the Dubai stock exchange after its initial public offering.

Laboratory products supplier VWR raised $536 million in its initial public offering Thursday, while home goods retailer Wayfair saw its shares surge after its IPO priced higher than expected.

Shares of GoPro Inc. slid Thursday after the sports camera maker's founders said they were donating 5.8 million of their shares to a foundation they had just created.

Shares of Otonomy are rising Wednesday after the biotech drug developer's initial public offering raised $100 million.

Shares of Synchrony Financial are rising slightly in their debut on the New York Stock Exchange.

Shares of high-speed trading company Virtu Financial Inc. have risen 17 percent in their stock market debut Thursday.

Foreigners who want to buy Alibaba Group shares in the Chinese e-commerce giant's U.S. public offering will need to get comfortable with an unusual business structure.

Cloud storage company priced its long-anticipated IPO Thursday at $14 per share, above the expected range of $11 to $13 per share. At this price Box raised $175 million in its offering and values the company at about $1.67 billion.

U.S. markets are attracting foreign companies seeking IPOs because of low volatility, strong performance overall in the equity markets, and because IPOs are getting great returns.