Tuesday broker round-up - UPDATE

WPP: JP Morgan upgrades to outperform from neutral.AMEC: BarCap raises target from 1,340p to 1,350p, underweight rating kept.ASOS: Peel Hunt keeps buy rating and 1,800p target.AstraZeneca: BarCap keeps equal weight rating.Betfair: Nomura cuts target from 1,070p to 946p, buy rating unchanged.Big Yellow: Peel Hunt reiterates buy rating and 350p target.bwin.party: Peel Hunt cuts target from 140p to 124p, hold rating kept.Catlin: BarCap keeps overweight rating.Dechra Pharmaceuticals: Investec keeps buy rating and 557p target.Dunelm: Investec raises target from 555p to 500p, hold rating maintained.Essar Energy: BarCap keeps overweight rating.Galliford Try: Peel Hunt reiterates buy rating and 825p target.Greene King: Nomura raises target from 533p to 585p, neutral rating kept.Interserve: Peel Hunt maintains sell rating.Marks & Spencer: Investec keeps sell rating and 295p target; Peel Hunt keeps hold rating and 350p target.Michael Page: Jefferies cuts target from 500p to 475p, buy rating kept; BarCap maintains underweight rating.Salamander Energy: BarCap reiterates overweight rating; Bank of America upgrades to neutral from underperform.SIG: Peel Hunt keeps sell rating and 90p target.Sinclair IS Pharma: Jefferies reiterates buy recommendation and 45p target.SSE: Investec upgrades from hold to buy, target lifted from 1,226p to 1,479p.Tikit Group: Investec reiterates buy recommendation and 370p target.Wynnstay Group: Investec ups target from 360p to 385p, hold rating kept.BC