Antofagasta: Exane BNP Paribas upgrades from neutral to outperform, target lifted from 1,200p to 1,450p; Nomura cuts target to 1,500p from 1,650p, buy rating unchanged.AstraZeneca: Goldman Sachs cuts target from 3,350p to 3,306p, neutral rating kept.Barclays: UBS raises target from 240p to 272p, neutral rating kept; Citi keeps buy rating.British Sky Broadcasting: Espirito Santo reiterates neutral recommendation and 810p target.BT Group: Espirito Santo reiterates sell recommendation and 180p target; Citi keeps buy rating and 230p target.Carillion: UBS ups target from 310p to 320p, neutral rating unchanged.Dragon Oil: Credit Suisse initiates with an outperform recommendation and 818p target.Electrocomponents: UBS raises target from 205p to 250p, neutral rating kept.First Quantum Minerals: Nomura cuts target, buy rating kept.GKN: UBS keeps buy rating and 250p target.Hammerson: Exane BNP Paribas lifts target from 450p to 490p, outperform recommendation kept.IDOX: Investec ups target from 32p to 38p, buy rating kept.Imperial Tobacco: Citi retains buy rating.Kazakhmys: Nomura cuss target from 1,200p to 1,100p, neutral rating kept.Legal & General: UBS lifts target from 110p to 129p, neutral rating kept; Deutsche Bank ups target from 135p to 155p, buy rating maintained.Lloyds: Exane BNP Paribas reiterates outperform rating and 45p target.Premier Farnell: Credit Suisse raises target from 200p to 220p, neutral rating kept.Standard Life: Credit Suisse downgrades from neutral to underperform, target raised from 238p to 255p.Tullow Oil: HSBC downgrades from neutral to underweight, target cut from 1,417p to 1,381p; UBS downgrades from buy to neutral, target cut from 1,640p to 1,600p.Vodafone: Espirito Santo reiterates buy recommendation and 240p target.