NEW YORK ( TheStreet) -- CHANGE IN RATINGSBest Buy ( BBY) upgraded at Goldman to Buy from Neutral on product cycle recovery. Price target inflated to $47 from $44. 2010 and 2011 EPS estimates increased to $3.33 and $3.53, respectively. Cintas ( CTAS) downgraded at Barclays to Underweight from Equal Weight as fundamentals do not justify valuation. 2010 and 2011 EPS estimate set at $1.46 and $1.50, respectively. Maintain $21 price target. DirecTV ( DTV) downgraded at Citi to Hold from Buy as most good news is priced in. Maintain $38 target. 2010 and 2011 EPS estimates set at $2.27 and $3.20, respectively. F5 Networks ( FFIV) downgraded at BofA/Merrill from Buy to Neutral. Valuation call, based on a $65 price target. Humana ( HUM) downgraded at Argus from Buy to Hold. $46 price target. Company could lose Tricare contract and see changes in Medicare funding. ITT ( ITT) downgraded at BofA/Merrill from Buy to Underperform. $58 price target. Estimates also lowered, as the company has relatively less cyclical earnings leverage. Palm ( PALM) price target cut at Barclays to $4.50 from $7 as inventory overhand is a major challenge. 2010 and 2011 EPS estimates sunk to -$1.49 and -$1.15, respectively. Equal Weight rating. Palm ( PALM) downgraded at Kaufman PALM was downgraded from Hold to Sell. $3 price target. Company may not be profitable for the next 4-6 quarters, and will likely have to raise more capital. Synaptics ( SYNA) downgraded at Oppenheimer from Outperform to Perform. Channel checks suggest that the mobile business is struggling. Integrys Energy Group ( TEG) downgraded at Citi to Sell from Hold on valuation. Price target raised to $42 from $40. 2010 EPS estimate cut to $2.98, 2011 increased to $3.20.