NEW YORK ( TheStreet.com) -- CHANGE IN RATINGSAflac ( AFL) downgraded at Citigroup from Buy to Hold. Estimates also cut ahead of earnings, to reflect weaker sales and rising investment losses. $36 price target. Coach ( COH) upgraded at Piper Jaffray. Rating raised to Overweight from Neutral. Price target raised to $32 from $23. Fiscal 2010 EPS estimates raised to $1.98 from $1.95. Cypress Semiconductor ( CY) rated new Buy at ThinkEquity. $13 price target. PSoC and data communication markets are driving growth. Discover ( DFS) downgraded at Goldman to Buy from Conviction Buy based on valuation. The stock has rallied since being added upgraded and its current entry point is unattractive. Increased price target to $14 from $12 and normalized EPS estimates to $1.80 from $1.60. Dow Chemical ( DOW) initiated at UBS with a Buy rating and $25 price target. Introduces 2009 EPS estimates of $0.10. Ecolab ( ECL) upgraded at JP Morgan. Rating raised to Neutral from Underweight. Price target raised to $40 from $34. 2009 EPS estimates raised to $2.00 from $1.90. Ensco ( ESV) downgraded at Morgan Stanley. Rating lowered to Underweight from Equal-weight. Maintains $65 price target and 2009 EPS estimates of $5.50. Fresh Del Monte ( FDP) downgraded at Morgan Stanley. Rating lowered to Equal-weight from Overweight. Price target raised to $23 from $19. 2009 EPS estimates raised to $2.20 from $2.00. Fifth Third ( FITB) upgraded at Goldman to Conviction Buy from Buy. Cites better and sustainable pre-provision earnings, nonperforming asset growth has decelerated, and tangible common equity is almost 7% and reserves to loans are 4.3%, providing greater capital certainty. Price target raised to $11 from $8.50. Estimates for FY09 raised to $1 from $0.92.