Friday broker round-up UPDATE

African Minerals: Deutsche Bank reduces target price from 316p to 249p maintaining a buy recommendation.Atkins: Numis ups target price from 1650p to 1700p and keeps a buy recommendation. JP Morgan reduces target price from 1619p to 1548p and reiterates its overweight rating.Ferrexpo: Deutsche Bank cuts target price from 350p to 319p, while leaving its buy recommendation unchanged.Glencore Xstrata: Deutsche Bank lowers target price from 415p to 411p and retains a buy recommendation.HSBC Holdings: JP Morgan cuts target price from 700p to 675p and reiterates a neutral rating.National Grid: Deutsche Bank raises target price from 660p to 725p, but still recommends selling.Petra Diamonds: RBC Capital ups target price from 180p to 200p retaining an outperform rating.Premier Farnell: Deutsche Bank shifts target price from 240p to 245p and keeps a buy recommendation.PZ Cussons: JP Morgan cuts target price from 370p to 350p and maintains a neutral rating.Rio Tinto: Deutsche Bank reduces target price from 4690p to 4580p staying with its buy recommendation.Sepura: Westhouse Securities moves target price from 160p to 170p and keeps a buy recommendation.Servern Trent: Deutsche Bank increases target price from 2000p to 2150p and maintains a buy recommendation.Spectris: Morgan Stanley initiates with a target price of 2680p and an overweight rating.Standard Chartered: JP Morgan cuts target price from 1500p to 1450p keeping its neutral rating.Tower Resources: Northland Capital places its hold recommendation under review.United Utilities: Deutsche Bank ups target price from 900p to 980p and reiterates its buy recommendation.Vesuvius: Numis upgrades from hold to add with a target price of 515p.