NEW YORK (TheStreet) -- CHANGE IN RATINGSAFLAC ( AFL) was upgraded to buy from neutral at Sterne Agee. $65 price target. Hedging, margin outlook and building free cash flow story, Sterne Agee said. F5 Networks ( FFIV) was downgraded from outperform to market perform, FBR Capital Markets said. $75 price target. Company may see lower demand from service provider and tech customers. Raymond James Financial ( RJF) shares of RJF were downgraded to neutral from buy at Citi. Earnings drivers are more muted that previously anticipated, said Citigroup. Price target goes to $44. Sunpower ( SPWR) was upgraded from neutral to outperform at Baird. $16 price target. Analyst day should offer better transparency about the downstream business, Robert Baird said. Windstream ( WIN) Windstream was downgraded to neutral at BofA/Merrill. $8 price target. Company lacks cash flow visibility, Bank of America/Merrill Lynch said. AmerisourceBergen ( ABC) was downgraded from outperform to neutral at Baird. Valuation call, based on a $57 price target, Robert Baird said. Alkermes ( ALKS) was downgraded to underperform, Bank of America/Merrill Lynch said. Valuation call, based on a $29 price target. Boston Scientific ( BSX) was upgraded from neutral to outperform at Credit Suisse. $8.75 price target. Estimates also boosted, as the company is returning to positive sales growth, Credit Suisse said. Carpenter Technology ( CRS) Carpenter Technology was downgraded from overweight to neutral at JP Morgan. Valuation call, based on a $55 price target, JP Morgan said. Greatbatch ( GB) shares were downgraded to neutral given reduced revenue visibility, said Craig-Hallum. Price target is $31. Hancock ( HBHC) was downgraded from buy to hold, Wunderlich said. Core trends are bad across the board. Lender Processing ( LPS) Lender Processing was upgraded from perform to outperform, Oppenheimer said. $36 price target. TD&A business can drive growth. Petrologistics ( PDH) were downgraded to neutral/high risk from buy/high risk at Citigroup. Lower propylene prices are expected and valuation is fair on new estimates. Price target goes to $14.50. PerkinElmer ( PKI) was downgraded from strong buy to buy at ISI. $36 price target. Company is seeing lower demand in environmental safety and industrial markets, in the EU and Japan.