Facebook Plows Zynga Shares

Zynga (NASDAQ:ZNGA) shares were halted this morning due to a Nasdaq circuit breaker after falling more than 13 percent shortly following Facebook’s (NASDAQ:FB) public debut. Shares of Zynga (NASDAQ:ZNGA) are now down around 10 percent. Zynga is famous for the game “Farmville.”

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Other social networking shares are also trading down. LinkedIn (NYSE:LNKD) is trading down more than more than 4 percent at one point, while Yelp (NYSE:YELP) is down more than 7 percent. Groupon (NASDAQ:GRPN) is off by more than 6 percent.

Renren (NYSE:RENN), a China-based social networking company, is also in the red, down more than 12 percent as of 2 p.m. EDT.

Meanwhile, Facebook continued to trade in the $40-41 range, slightly below its opening price of $42.05.

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