Palm Beach, FL 1/27/12 (StreetBeat) -- Juniper Networks Inc.'s (NYSE: JNPR) stock fell more than 9 percent Friday morning, following its fourth quarter earnings.

The Sunnyvale-based company's shares were the biggest decliner on the S&P 500 during the preopen session, according to MarketWatch.

It reported net income for the quarter of $96.2 million, or 18 cents per diluted share, compared to $190.2 million, or 35 cents per diluted share, in the same quarter last year.

Juniper had net revenue of $1.1 billion, down 6 percent compared to the fourth quarter of 2010.

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