Jones Apparel ( JNY) upgraded at Merrill from neutral to buy with a $20 price target. Estimates also raised to reflect the WMT launch this summer and some retail recovery. Nordstrom ( JWN) upgraded at Credit Suisse to outperform from neutral based on structural improvements. See increased focus on return on capital and favorable position relative to other retailers that are likely to close stores. Price target raised to $40 from $35. ManTech International ( MANT) downgraded at Cowen to neutral from outperform. Maintains 2008 EPS estimates of $2.45. Morningstar ( MORN) upgraded at KBW to outperform. Company is positioned to deliver high-teens earnings growth, even in a difficult environment. $72 price target. Priceline.com ( PCLN) downgraded at Citigroup from buy to hold with a $137 price target. Valuation call, as the stock is up nearly 50% since mid-January. Patterson-UTI ( PTEN) upgraded at CSFB to neutral from underperform. 2008 EPS estimates raised to $2.15 from $2.05. Price target raised to $30 from $21. Patterson-UTI Energy upgraded at Credit Suisse to neutral from underperform based on improved outlook for U.S. drilling activity and dayrates. First-quarter management commentary was positive, including plans to deploy most of remaining NOV IDEAL rigs into field by year-end. Price target at $30. Pioneer Natural ( PXD) upgraded at Deutsche from hold to buy with an $81 price target. MLP offering should help unlock value, and a new shale play should add to the company's recent positive operational news. Timberland ( TBL) upgraded at Citigroup from sell to hold with a $17 price target. See limited downside, even though restructuring and rebranding issues remain.