NEW YORK ( TheStreet) -- CHANGE IN RATINGSAssurant ( AIZ) was downgraded at Bank of America/Merrill Lynch to Underperform. $45 price target. Company could fall short of consensus earnings expectations, BofA/Merrill said. Avon ( AVP) was downgraded at Caris & Co. from Above Average to Average. Estimates were also slashed, and the dividend may come into question, Caris said. Chesapeake Energy ( CHK) was downgraded at Robert Baird from Outperform to Neutral. $22 price target. Ramp in liquids appears materially impaired, Baird said. ConocoPhillips ( COP) was downgraded at BofA/Merrill to Underperform. Valuation call, based on a $63 price target, Bank of America/Merrill said. Demand Media ( DMD) was upgraded to Hold at TheStreet Ratings. Endo Pharmaceuticals ( ENDP) was downgraded at Cantor Fitzgerald to Hold. $39 price target. Company is still recovering from a supply disruption and has the potential Lidoderm settlement looming, Cantor said. EQT ( EQT) was downgraded at Brean Murray to Hold. Stock is already pricing in the potential IPO of its MLP, Brean Murray said. Edwards Lifesciences ( EW) was upgraded at Wells Fargo to Outperform. Sapien expectations are more reasonable and the product should see higher reimbursement rates. Fiserv ( FISV) was downgraded at DA Davidson to Neutral. Valuation call, based on a $75 price target, DA Davidson said. Flextronics ( FLEX) was upgraded at Bank of America/Merrill Lynch. $7.50 price target. Company is realizing higher margins. Genworth Financial ( GNW) was upgraded at BofA/Merrill to Neutral. Management change is a potential positive for the company, BofA/Merrill Lynch. $8 price target. GNC Acquisition Holdings ( GNC) was initiated with a Hold rating at TheStreet Ratings. Herbalife ( HLF) was upgraded at Auriga USA to Buy. $68 price target. 20% pullback has created a buying opportunity, Auriga said. Heartland Payment ( HPY) was downgraded at Wells Fargo to Market Perform. Valuation call, even though estimates are moving higher, Wells Fargo said. Kansas City Southern ( KSU) was downgraded at BMO Capital to Underperform. Valuation call, based on a $68 price target, BMO Capital said. Regal Entertainment ( RGC) was upgraded at Stifel Nicolaus from Hold to Buy. $17 price target. Company fundamentals are improving, Stifel Nicolaus said. TripAdvisor ( TRIP) was upgraded at Capstone from Sell to Hold. International business is driving growth. TripAdvisor was upgraded at BofA/Merrill from Neutral to Buy. $53 price target. Estimates also boosted, given the company's secular growth drivers, BofA/Merrill said.