G4S: Credit Suisse upgrades from neutral to outperform, target raised from 240p to 285p.Standard Chartered: Evolution Securities downgrades from buy to neutral, target unchanged at 1,800p.Standard Chartered: Nomura maintains buy rating and 1,800p target.Next: Investec places 2,350p target under review, hold rating kept.Standard Life: Nomura keeps reduce rating and 250p target.Standard Life: Investec reiterates buy recommendation and 255p target.Legal & General: UBS ups target from 95p to 104p, neutral rating maintained.Randgold Resources: Investec puts 7,962p target under review, keeps buy rating.Imperial Tobacco: UBS raises target from 2,385p to 2,435p, keeps buy recommendation.Inmarsat: Investec keeps buy rating and 700p target.Lamprell: Investec upgrades from hold to buy, cuts target from 393p to 361p.Aegis: UBS raises target from 170p to 180p, buy rating kept.Logica: Investec cuts target from 95p to 85p, hold kept.Avocet Mining: Evolution Securities reiterates add recommendation and 276p target.Serco: Investec maintains buy rating and 650p target.Misys: UBS increases target to 285p, from 240p, neutral rating kept.St. James's Place: Investec maintains buy recommendation and 380p target.Game Group: UBS slashes target from 20p to 15p, sell stance maintained.Homeserve: Investec maintains hold and 450p target.