Analyst upgrades:

• Wells Fargo transferred coverage of Cooper Industries (NYSE: CBE) with an Outperform rating, upgraded from the previous analysts' Market Perform rating. The firm believes commercial construction will be of less of a headwind for the company than the Street thinks, and has a $38-$41 valuation range on the stock.
• Kaufman Bros. upgraded SuccessFactors (NASDAQ: SFSF) to Buy from Hold after channel checks indicated demand trends picked up in July. The firm raised its target on shares to $15 from $12.
• UBS upgraded eBay (NASDAQ: EBAY) to Buy from Neutral and believes Marketplace transaction growth is "turning the corner." Additionally, the firm believes the secondary market represents a long-term opportunity for the company. The firm raised its target to $28 from $24.
• Novartis (NYSE: NVS) was upgraded to Buy from Hold at Jefferies.
• Arcelor Mittal (NYSE: MT) was upgraded to Buy from Hold at Citigroup.
• Cardinal Health (NYSE: CAH) was upgraded to Buy from Neutral at Goldman.
• Yahoo! (NASDAQ: YHOO) was upgraded to Outperform from Market Perform AMC Monday at Bernstein.