Thursday broker round-up UPDATE

BAE Systems: Westhouse Securities initiates with a target price of 360p and a sell recommendation.Berkeley Group: Deutsche Bank increases target price from 2587p to 2877p retaining a hold recommendation. Jefferies raises target price from 2477p to 2543p and keeps a hold recommendation.BG Group: Credit Suisse downgrades from neutral to underperform.Brown (N) Group: Oriel downgrades from buy to hold with a target price of 420p.Charles Stanley: Canaccord Genuity shifts target price from 475p to 480p upgrading from hold to buy.Chemring Group: Westhouse Securities starts with a target price of 150p and a sell recommendation.Cobham: Westhouse Securities initiates with a target price of 230p and a sell recommendation.Crest Nicholson: Jefferies ups target price from 419p to 434p and keeps a buy recommendation.Derwent London: Societe Generale upgrades to buy.Faroe Petroleum: Oriel lowers target price to 200p keeping a buy recommendation.Genel Energy: Morgan Stanley raises target price from 1065p to 1235p upgrading from equal-weight to overweight.GNK: Westhouse Securities starts with a target price of 450p and a buy recommendation.Go-Ahead Group: Investec ups target price from 2630p to 2670p maintaining its buy recommendation.Gulf Keystone: Morgan Stanley initiates with a target price of 78p and an underweight rating.HSBC Holdings: Nomura cuts target price from 710p to 680p retaining a neutral rating.Immunodiagnostic Systems: Canaccord Genuity ups target price from 459p to 492p retaining its hold recommendation.Informa: N+1 Singer reduces target price from 550p to 430p downgrading from hold to sell.Intu Properties: Societe Generale upgrades to hold.Kingfisher: Credit Suisse cuts target price from 475p to 450p and maintains an outperform rating.Legal & General: Societe Generale reduces target price from 220p to 185p downgrading to sell.Liontrust Asset Management: N+1 Singer raises target price from 294p to 338p retaining a buy recommendation.Meggitt: Westhouse Securities initiates with a target price of 470p and a neutral rating.Micro Focus: Numis downgrades from buy to add with a target price of 920p. Investec raises target price from 850p to 950p and upgrades from hold to buy.Playtech: Nomura cuts target price from 776p to 753p, while upgrading to buy.Premier Oil: Numis downgrades from buy to add with a target price of 397p.Publishing Technology: Westhouse Securities reduces target price from 560p to 400p, while leaving its buy recommendation unchanged.Rolls-Royce Group: Westhouse Securities initiates with a target price of 1050p and a neutral rating.Rotork: Morgan Stanley upgrades from underweight to equal-weight with a target price of 2570p.Standard Chartered: Nomura cuts target price from 1610p to 1580p, while staying with its buy recommendation.Velocys: Canaccord Genuity initiates with a target price of 400p and a speculative buy recommendation.