OPENING DAY: Shares of Trulia Inc. jumped in their first day of trading on the New York Stock Exchange. If the gains hold, it would mark the biggest climb in a U.S. trading debut since the July IPO of teen retailer Five Below Inc.
THE COMPANY: Trulia, based in San Francisco, runs a real estate website and mobile app that helps people research home listings and neighborhoods.
FINANCES: While Trulia's revenue is growing, nearly doubling last year, it is unprofitable. In 2011, it posted a loss of $6.2 million. In the six months through June 30, its loss grew to $7.6 million.