MOST NOTEWORTHY: Best Buy Co, Inc (BBY), Amazon.com, Inc (AMZN), aQuantive, Inc (AQNT) and AT&T (T) were today's most notable upgrades:
- Goldman upgraded shares of Best Buy (NYSE: BBY) to Buy from Neutral, telling customers valuation is discounting an earnings miss and reflects concerns about the company's capital allocation. The firm expects BBY to meet recent guidance and current Street estimates.
- Deutsche bank upgraded shares of Amazon.com (NASDAQ: AMZN) to Buy from Hold, citing expectations for operating margin improvement near-term and added growth and margin expansion longer-term from Web Services initiatives.
- JP Morgan upgraded shares of aQuantive (NASDAQ: AQNT) to Outperform from Neutral, citing valuation and stronger fundamentals as the firm expects Google's (GOOG) acquisition of DoubleClick to result in stable pricing during the integration process. aQuantive was also upgraded to Buy from Neutral at UBSW and to Sector Outperformer from Sector Performer at CIBC.
- AT&T Inc (NYSE: T) was upgraded to Outperform from Sector Perform at RBC Capital, as the firm believes shares have stronger growth prospects compared to the group based on wirelines cost cutting, churn and margin improvements at Cingular.
OTHER UPGRADES:
Analyst summaries provided by TheFlyOnTheWall.com (subscription required). 
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