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The social gaming company is spooked by the "rocky stock markets," according to the report in The New York Post, which cites two sources with knowledge of Zynga's plans.
Mashable could not reach reps from Zynga for comment.
In late June, Zynga announced plans to go public. The company, which is behind FarmVille, CityVille and Mafia Wars, among other titles, hopes to raise $1.5 billion to $2 billion in its IPO. But since the debt ceiling debate this summer, tech stocks have been hit hard.