Online game maker Zynga Inc. is planning to list its stock on the Nasdaq Stock Market.
Zynga said in a filing Thursday with Securities and Exchange Commission that it expects to list its shares on the exchange under the ticker symbol "ZNGA."
The San Francisco-based company filed for its initial public offering in July. When its shares will begin trading or at what price remains undetermined.
Most of Zynga's games, such as "FarmVille" and "Mafia Wars," are played on Facebook. The games are free to play. Zynga makes money by charging for virtual items to improve play.
The company is working on a service called "Project Z" that will serve as an online play area, though users will still need to have a Facebook account to log on.