Zynga, a leading social game developer for Facebook, raised $1 billion by offering 100 million Class A shares at $10, at the high end of the range of $8.50 to $10. Zynga plans to list on the NASDAQ under the symbol ZNGA. Morgan Stanley and Goldman, Sachs & Co. acted as lead managers on the deal, which is the largest tech IPO since Google went public in 2004.
