Wednesday broker round-up UPDATE

Aberdeen Asset Management: RBC Capital moves target price from 485p to 495p and maintains an outperform rating.African Barrick Gold: Deutsche Bank upgrades to buy with a target price of 310p.African Minerals: Investec reduces target price from 241p to 198p and leaves its buy recommendation unchanged.Antofagasta: UBS cuts target price from 785p to 710p downgrading from neutral to sell.Atkins (WS): Investec ups target price from 1350p to 1400p retaining its hold recommendation.AVEVA Group: Liberum Capital reduces target price from 2250p to 2000p and stays with its hold recommendation. Panmure Gordon shifts target price from 2195p to 2199p and upgrades from hold to buy.BHP Billiton: JP Morgan cuts target price from 2300p to 2250p and retains a neutral rating.Brammer: Investec ups target price from 485p to 500p, while downgrading from buy to add.Carillion: Cantor Fitzgerald raises target price from 350p to 420p upgrading to buy.Coal of Africa: Investec lowers target price from 17p to 9p maintaining its buy recommendation.Dart Group: Canaccord Genuity raises target price from 280p to 338p and keeps a buy recommendation.IMI: HSBC Holdings increases target price from 1620p to 1750p upgrading to overweight.Internet Q: RBC Capital takes target price from 440p to 500p and reiterates an outperform rating.Investec: UBS ups target price from 485p to 520p, while downgrading from buy to neutral.Kingfisher: UBS moves target price from 440p to 470p upgrading from neutral to buy.Lancashire Holdings: Espirito Santo upgrades to buy with a target price of 780p.McColl's Retail Group: Numis initiates with a target price of 220p and a buy recommendation.Polymetal International: Deutsche Bank ups target price from 500p to 520p maintaining a hold recommendation.Rotork: HSBC Holdings raises target price from 2550p to 2700p, while keeping its neutral rating.Smiths Group: HSBC Holdings reduces target price from 1350p to 1200p and retains an underweight rating.Spirent Communications: Numis moves target price from 120p to 135p upgrading from add to buy.Standard Chartered: Investec reduces target price from 1700p to 1600p, while staying with its buy recommendation.Tesco: JP Morgan cuts target price from 285p to 250p and leaves its underweight rating unaltered.Vectura: Investec downgrades from buy to hold with a target price of 170p.Victrex: Numis lowers target price from 2060p to 2033p retaining its hold recommendation.Volex Group: Investec lowers target price from 140p to 130p, while staying with its buy recommendation.