CAT: Analysts' Upgrades, Downgrades

NEW YORK (TheStreet) -- CHANGE IN RATINGS

Accenture (ACN Quote) upgraded at Argus from Hold to Buy. $50 price target. Company has consistently met earnings expectations and is returning cash to shareholders.

Advanced Micro (AMD Quote) downgraded at FBR to Market Perform. $6 price target. See increased near-term PC inventory risks, following recent channel checks in Taiwan.

American Superconductor (AMSC Quote) initiated at Barclays with an Equal Weight rating and $36 price target the company is well positioned to benefit from rapid growth in China/global wind market. 2009 and 2010 EPS estimates set at $0.49 and $0.95, respectively.

Comerica (CMA Quote) upgraded at Goldman to Neutral. Tangible assets are up, though the company still has some late-cycle credit issues.

Convergys (CVG Quote) upgraded at Citi to Buy from Hold on valuation. 2009 and 2010 EPS estimates trimmed to $1.00 and $1.11, respectively. Price target set at $12.

Endo Pharma (ENDP Quote) upgraded at Oppenheimer to Outperform. $27 price target. Anticipate an approval for Fortesta in mid-October. Estimates also raised.

General Dynamics (GD Quote) upgraded at Morgan Stanley from Equal-weight to Overweight. Estimates also boosted to reflect higher Gulfstream demand, especially in China. $80 price target.

Health Management (HMA Quote) upgraded at Argus from Sell to Hold. Company has paid down debt and is improving its operating performance.

Manitowoc (MTW Quote) upgraded at Deutsche Bank. Rating raised to Buy from Hold. Price target raised to $12 from $7. 2009 EPS estimates raised to $0.50 from $0.49.

Pinnacle West Capital (PNW Quote) upgraded at Citi to Buy from Hold as analysts expect better Arizona regulatory relations will be recognized in PNW shares. 2009 and 2010 EPS estimates set at $2.24 and $2.83. $35 price target, up from $32.