Qiagen (QGEN) (BTN) (CE) (PRSP) (CSC) (CX) Downgraded

Qiagen (NASDAQ: QGEN), Ballantyne Strong, Inc. (NYSE: BTN), Celanese Co. (NYSE: CE), Prosperity Bancshares, Inc. (NASDAQ: PRSP), Computer Sciences (NYSE: CSC) and Cemex SAB de CV (NYSE: CX) downgraded by analysts.

Qiagen (QGEN) was downgraded by Wedbush from an “Outperform” rating to a “Neutral” rating. They have a price target of $19.00 on the company, down from $24.00.

Ballantyne Strong, Inc. (BTN) was downgraded by Merriman Curhan Ford from a “Buy” rating to a “Neutral” rating.

Celanese Co. (CE) was downgraded by Macquarie from an “Outperform” rating to a “Neutral” rating.

Prosperity Bancshares, Inc. (PRSP) was downgraded by Macquarie from an “Outperform” rating to a “Neutral” rating.

Computer Sciences (CSC) was downgraded by Goldman Sachs (NYSE:GS) from a “Buy” rating to a “Neutral” rating.

Cemex SAB de CV (CX) was downgraded by Citigroup (NYSE:C) from a “Buy” rating to a “Hold” rating. They have a price target of $9.50 on the company.

Ratings on (NRGY) (NSM) (QGEN) (RIMM) Downgraded

Ratings on shares of Inergy (NASDAQ: NRGY), National Semiconductor Corp. (NYSE: NSM), Qiagen (NASDAQ: QGEN) and Research In Motion (NASDAQ: RIMM) were downgraded by analysts.

Raymond James (NYSE:RJF) downgraded Inergy (NRGY) from a “buy” rating to a “market perform” rating.

FBR Capital downgraded National Semiconductor Corp. (NSM) from an “outperform” rating to a “market perform” rating. They have a price target of $25.00 on the company, up from $20.00.

Macquarie downgraded Qiagen (QGEN) to a “neutral” rating.

Societe Generale downgraded Research In Motion (RIMM) from a “buy” rating to a “hold” rating.

Qiagen NV (Nasdaq:QGEN) Crushed After Earnings Shortfall

Shares of Qiagen NV (Nasdaq:QGEN) were getting crushed after hours on Monday night, as the company reported earnings in the fourth quarter plummeted by 18 percent. Revenue also dropped, although adjusted profit was able to exceed company expectations. That was the result of booking higher charges a year ago in 2009.

More troubling for the company was its weak guidance, which said the results in the current quarter are expected "to be soft."

The good news is Qiagen said they are moving toward "substantially higher growth rates later in the year."

While Qiagen closed at $18.45, up $0.32, or 1.77 percent. In after hours trading they plunged $0.93, or 5.04 percent.