Analyst Upgrades

• Akamai (AKAM) to overweight from neutral at Piper Jaffray.
• Las Vegas Sands (LVS) to buy from neutral at UBS.
• Aetna (AET) to Outperform from market perform at Leerink.
• Hot Topic (HOTT) to buy from neutral at Janney Capital.
• Colonial Properties (CLP) upgraded to Outperform from market perform at FBR Capital and to buy from hold at Citigroup.
• Altera (ALTR) to buy from hold at Citigroup.
• American Reprographics (ARC), CarMax (KMX) and American Campus (ACC) to outperform from neutral at RW Baird.
• Zebra Tech (ZBRA) to neutral from underweight at JPMorgan.
• IMAX (IMAX) to buy from hold at Canaccord.
• Basic Energy (BAS) to neutral from sell at Goldman.
• Mednax (MD) to buy from neutral at BofA/Merrill.
• UTi Worldwide (UTIW) to buy from hold at Stifel Nicolaus.

• Citigroup upgraded WebMD (NASDAQ: WBMD) shares to Buy from Hold on valuation following the company's Q4 results and outlook. The firm maintains a $25 target on the stock.
  
• Goldman upgraded Verizon (NYSE: VZ) and AT&T (NYSE: T) to Buy from Neutral based on valuation and expectations for 2010 earnings growth.
• Roth upgraded Maxwell Tech (NASDAQ: MXWL) to Buy from Hold following the company's Q4 results to reflect strong ultracapacitor sales growth and gross margin improvement. The firm maintains a $12 target on the stock.
• Nara Bancorp (NASDAQ: NARA) was raised to Market Perform from Underperform at Friedman Billings.
• Cubic (NYSE: CUB) was upgraded to Neutral from Overweight at JP Morgan.
  
• Terex (NYSE: TEX) was lifted to Outperform from Market Perform at Wachovia.