Business: Zynga develops a host of popular social online games, including FarmVille and CityVille.
IPO date: December 15, 2011
Cash raised: $1 billion
Stock performance: Zynga shares are down 13 percent since its IPO.
May 17, 2012 11:00 AM PDT
Photo by: Zynga
| Caption by: Don Reisinger
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