Facebook (FB) is expected to report earnings today after market close. The whisper number is $1.41, six cents ahead of the analysts' estimates and showing some confidence from the WhisperNumber community. Whispers range from a low of $1.39 to a high of $1.43.

A year ago the company reported earnings of $1.04, fifteen cents short of the whisper number. Facebook has a 70% positive surprise history (having topped the whisper in 16 of the 23 earnings reports for which we have data).

Earnings history:

•  Beat whisper: 16 qtrs
•  Met whisper: 0 qtrs
•  Missed whisper: 7 qtrs

Our primary focus is on post earnings price movement. Knowing how likely a stock's price will move following an earnings report can help you determine the best action to take (long or short). In other words, we analyze what happens when the company beats or misses the whisper number expectation.

The table below indicates the average post earnings price movement within a one and thirty trading day timeframe:

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The strongest price movement of -6.1% comes within thirty trading days when the company reports earnings that beat the whisper number, and -2.8% within ten trading days when the company reports earnings that miss the whisper number. The overall average post earnings price move is 'negative' (beat the whisper number and see weakness, miss and see weakness) when the company reports earnings.

The table below indicates the most recent earnings reports and short-term price reaction:

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The company has reported earnings ahead of the whisper number in three of the past four quarters with a whisper number. In the comparable quarter last year the company reported earnings fifteen cents short of the whisper number. Following that report, the stock realized a 0.5% gain in one trading day. Last quarter the company reported earnings eighteen cents ahead of the whisper number. Following that report, the stock realized a 6.5% loss in twenty trading days. Overall historical data indicates the company to be (on average within thirty trading days) a 'negative' price reactor when the company reports earnings.