Morning Market Movers

Extorre Gold Mines (AMEX: XG) shares advanced 54.89% to $4.12 at 9:45 am. Extorre Gold Mines agreed to be bought by Yamana Gold (NYSE: AUY) for C$4.26 per share in cash and stock.

China Finance Online Co (NASDAQ: JRJC) surged 38.84% to $1.68. China Finance Online's flagship portal site Stockstar.com has entered into an exclusive partnership with Baidu.com on a mobile web application.

Lentuo International (NYSE: LAS) surged 16.67% to $2.03. Lentuo International's PEG ratio is 0.44

Elster Group SE (NYSE: ELT) climbed 15.65% to $18.97. Elster Group is in talks to be bought by Melrose PLC for $2.3 billion.

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