Friday broker round-up UPDATE

Afren: Canaccord Genuity cuts target price from 220p to 190p, while leaving its buy recommendation unaltered.AVEVA Group: Liberum Capital initiates with a target price of 2350p and a hold recommendation.Carillion: Numis reduces target price from 350p to 315p, while its hold recommendation remains unchanged.Centrica: Liberum Capital takes target price from 370p to 440p retaining its buy recommendation.Costain Group: Liberum Capital cuts target price from 320p to 300p and downgrades to hold.Croda International: Deutsche Bank raises target price from 2400p to 2850p and upgrades to buy.Henry Boot: Investec ups target price from 180p to 200p and keeps a buy recommendation.IMI: JP Morgan increases target price from 1450p to 1660p and reiterates an overweight rating.Kazakhmys: Deutsche Bank shifts target price from 241p to 250p maintaining a hold recommendation. Canaccord Genuity raises target price from 280p to 320p keeping its hold recommendation.Kirkland Lake Gold: Investec lowers target price from 380p to 377p and retains a buy recommendation.New World Resources: Jefferies moves target price from 60p to 70p and keeps a hold recommendation. JP Morgan shifts target price from 40p to 38p staying with its underweight rating.Perform Group: Morgan Stanley reduces target price from 600p to 560p, while leaving its overweight rating unchanged.Premier Oil: Deutsche Bank ups target price from 560p to 592p and maintains a buy recommendation.Prudential: Deutsche Bank increases target price from 1240p to 1290p reiterating a buy recommendation.Rockhopper Exploration: Canaccord Genuity reduces target price from 422p to 365p, while staying with its buy recommendation.SAB Miller: Morgan Stanley cuts target price from 3435p to 3400p and stays with its equal-weight rating. Prudential Centrica Carillion Plc Costain Group Croda International Rockhopper IMI