Top Pre-Market Stock Upgrades/Downgrades March 23, 2010

Here is a list of this morning’s top companies upgrades, downgrades, and initiations by brokerage firms. Upgrades: Alliant Techsystems (ATK) upgraded to Overweight from Neutral JP Morgan American Superconductor (AMSC) upgraded to Buy from Hold at Jefferies Baidu (BIDU) upgraded to Buy from Hold at Kaufman China Telecom (CHA) upgraded to Neutral from Underweight at HSBC Flextronics International (FLEX) upgraded [...]