Facebook to report first earnings since public company

Facebook is due to reports its first quarterly earnings since it became a public company.

Shares are down 25% since the company's $100 billion market listing in May.

With limited historical data available for the social network, the numbers are hard to predict.

But nerves were seriously rattled late on Wednesday when Zynga, which publishes games on Facebook, badly missed Wall Street estimates and slashed its forecasts for the year ahead.

Michelle Fleury reports from New York.