NEW YORK (TheStreet) -- Shares of Twitter  (TWTR - Get Report) continue to decline, down 3.52% to $42.24, in morning trading Wednesday after the company's weak fourth-quarter guidance.

In its third-quarter earnings report, the micro-blogging company forecast revenue in the range of $440 million to $450 million for the fourth quarter, while analysts expect revenue of $448.2 million.

Twitter could also be suffering from its fellow social media giant, Facebook (FB) , which issued third-quarter results Tuesday. Facebook expects fourth-quarter revenue to increase 40% to 47% year-over-year to a range of $3.6 billion to $3.8 billion. The consensus estimate calls for $3.73 billion. 

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This would mark the slowest growth rate since the first quarter of 2013, when revenue rose 38%.

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