Top Active Trader Alert Stocks (AMLN, BRNC, CHK, GOOG, INFY)

Active traders and day traders have many stocks to choose from this Friday morning.  We are tracking news and moves in shares of Amylin Pharmaceuticals (NASDAQ: AMLN), Bronco Drilling Company (NASDAQ: BRNC), Chesapeake Energy (NYSE: CHK), Google, Inc. (NASDAQ: GOOG), and Infosys Technologies Limited (NASDAQ: INFY).

Amylin Pharmaceuticals (NASDAQ: AMLN) is up 12.8% before market open to $12.70, relative to a 52-week range of $9.51-$22.88. The European Medicines Agency is supporting the company’s new diabetes drug.

Bronco Drilling Company (NASDAQ: BRNC) is up 6.83% premarket to $11.11, relative to a 52-week range of $3.25-$11.63. The company was acquired by Chesapeake Energy (NYSE: CHK) for $11 per share.

Google, Inc. (NASDAQ: GOOG) is down on moderate trading nearly $35 (6%) this morning to $544.44, relative to a 52-week range of $433.63-$642.96. The drop, which represents a massive loss in market capitalization, comes after the search engine company announced earnings that fell short of expectations.

Infosys Technologies Limited (NASDAQ: INFY) is down nearly 10% premarket on moderate volume to $65.95, relative to a 52-week range of $53.28-$77.92. The company reported promising fiscal year guidance for 2011 and 2012.

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