Friday's Analysts' Upgrades, Downgrades

Change in Ratings

Abbott LabsABT Initiated at UBS with a buy rating. 2008 EPS estimates at $3.25. Price target is set to $61.

American SuperconductorAMSC downgraded at Jefferies to hold from buy. 2008 EPS estimates raised to -24 cents from -33 cents. Price target raised to $35 from $33.

Burger KingBKC added to buy list at Goldman, replacing McDonald'sMCD. Near-term, see more catalysts at BKC, including the lifting of overhang and investors refocusing on strong operations.

DRS TechnologiesDRS downgraded at UBS to neutral from buy. 2008 EPS estimates maintained at $3.30. Price target raised to $75 from $66.

Goodrich PetroleumGDP downgraded at Suntrust from neutral to reduce with a $30 price target. Valuation call, following the strong first-quarter results.

Georgia GulfGGC downgraded at UBS to neutral from buy. 2008 EPS estimates lowered to -$2.10 from 50 cents. Price target lowered to $4.50 from $10.00.

Sovereign BancorpSOV upgraded at KBW to market perform. $1 billion to $2 billion capital raise appears to be in the works. $7 price target.

Teco EnergyTE upgraded at Citigroup from hold to buy with a $21.50 price target. Estimates also raised, given the company's leverage to rising coal prices.

ValeroVLO removed from Goldman's Conviction Buy List due to near-term headwinds. Recent pullback also triggered stop-loss rule. See shares cheap valuation but note exposure to widening light-heavy crude spreads. Price target at $60.

Stock Comments/EPS Changes

Aecom TechnologyACM numbers raised at UBS. 2008 EPS estimates raised to $1.36 from $1.28. Price target raised to $34 from $31. Maintains buy rating.