Friday broker round-up UPDATE

Afren: Deutsche Bank lowers target price from 110p to 105p, leaving its hold recommendation unaltered.Aviva: Barclays ups target price from 397p to 420p and reiterates its equal-weight rating.Barclays: Deutsche Bank lowers target price from 300p to 295p and leaves its buy recommendation.Countrywide: Credit Suisse cuts target price from 572p to 538p and maintains its neutral rating.Henderson Group: Citi reduces target price from 246p to 218p, while upgrading to buy.Kazakhmys: JP Morgan lowers target price from 375p to 365p, reiterating its overweight rating.Kofax: Jefferies reduces target price from 560p to 500p, while staying with its buy recommendation.Lonmin: HSBC lowers target price from 267p to 252p, while upgrading to overweight.Martinco: Panmure Gordon ups target price from 155p to 168p and keeps a buy recommendation.National Express: UBS cuts target price from 330p to 310p and retains a buy recommendation.Pennon Group: Investec initiates with a target price of 835p and a hold recommendation.Premier Farnell: Numis cuts target price from 260p to 240p, while upgrading from add to buy.Rolls Royce: JP Morgan reduces target price from 950p to 875p and keeps a neutral rating.RPS Group: Jefferies cuts target price from 320p to 300p and maintains a buy recommendation.Severn Trent: Investec initiates with a target price of 1735p and a sell recommendation.Shanks Group: Liberum Capital cuts target price from 105p to 87p, retaining its hold recommendation.Smith & Nephew: Morgan Stanley raises target price from 1026p to 1089p, reiterating its equal-weight rating. Goldman Sachs cuts target price from 1070p to 1050p and stays with its neutral rating.Spectris: Canaccord Genuity reduces target price from 2330p to 2230p and stays with its hold recommendation.St. James's Place: Deutsche Bank cuts target price from 925p to 895p and keeps a buy recommendation.SuperGroup: Canaccord Genuity reduces target price from 1625p to 900p, while its buy recommendation remains unchanged. Cantor Fitzgerald reduces target price from 1500p to 1000p, maintaining a buy recommendation.ULS Technology: Numis lowers target price from 60p to 50p and downgrades from buy to add.United Utilities: Investec initiates with a target price of 730p and a sell recommendation. Barclays Smith & Nephew Pennon St James's Place Severn Trent United Utilities Rolls-Royce