NEW YORK ( TheStreet) -- CHANGE IN RATINGSDollar Tree ( DLTR) initiated with a Hold rating at Jefferies. $64 price target. Company is well-managed, but facing difficult near-term comparisons. Masco ( MAS) rated new Buy at Keybanc. Coverage of MAS was started with a Buy rating. $19 price target. Housing industry and economy in North America have likely reached a bottom. Strayer Education ( STRA) downgraded at BMO from Outperform to Market Perform. Valuation call, based on a $248 price target. Stanley Black & Decker ( SWK) upgraded at Deutsche from Hold to Buy. $70 price target. Coverage reinstated following the merger, as the company looks attractive on an earnings basis. Under Armour ( UA) downgraded at Barclays to Equal Weight from Overweight on valuation. 2010 and 2011 EPS estimates set at $1.05 and $1.30, respectively. $30 price target. Under Armour ( UA) downgraded at FBR to Market Perform. Stock is up 26% from its recent lows, and traded up through the $30 price target. Whole Foods ( WFMI) downgraded at Longbow to Neutral. Although a recent survey was positive, the stock is up 35% since December.