NEW YORK (TheStreet) -- Shares of Rocket Fuel Inc. (FUEL) are falling by 18.75% to $12 in after-hours trading on Thursday, after the technology company announced that its 2014 fourth quarter net loss widened from the same period last year.

For the most recent quarter Rocket Fuel said that its net loss was $20.5 million, or a loss of 49 cents per diluted share compared to a net loss of $2.2 million, or a loss of 7 cents per diluted share for the 2013 fourth quarter.

The company's non-GAAP adjusted net loss for the quarter was $7.4 million, or a loss of 18 cents per diluted share compared to a non-GAAP net income of $2.4 million, or 6 cents per diluted share for the same quarter last year.

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Rocket Fuel said its revenue for the fourth quarter grew by 63% to $135.9 million.

Analysts polled by FactSet were expecting an adjusted loss of 21 cents on revenue of $147 million for the 2014 fourth quarter.

Separately, TheStreet Ratings team rates ROCKET FUEL INC as a Sell with a ratings score of D-. TheStreet Ratings Team has this to say about their recommendation:

"We rate ROCKET FUEL INC (FUEL) a SELL. This is driven by a number of negative factors, which we believe should have a greater impact than any strengths, and could make it more difficult for investors to achieve positive results compared to most of the stocks we cover. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income and feeble growth in its earnings per share."

You can view the full analysis from the report here: FUEL Ratings Report

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