Tuesday broker round-up

AB Foods: Nomura cuts target from 1,400p to 1,380p, buy rating kept.BBA Aviation: Jefferies keeps buy rating and 250p target.Big Yellow: Goldman Sachs upgrades to conviction buy, target lifted from 360p to 390p.Devro: Investec keeps buy rating and 355p target.Diageo: Investec lifts target from 1,700p to 1,900p, buy rating kept.Filtrona: Citigroup downgrades to neutral.Great Portland Estates: UBS raises target from 370p to 455p, neutral rating kept.Heritage Oil: RBC Capital Markets keeps sector performer rating and 200p target.InterContinental Hotels: Nomura keeps neutral rating and 1,472p target.Ladbrokes: Investec raises target from 145p to 165p, hold rating kept.Legal & General: Nomura maintains buy rating and 182p target.Meggitt: Jefferies keeps hold rating and 300p target; Investec keeps buy rating and 450p target.Mondi: Jefferies keeps buy rating and 665p target.Next: Panmure Gordon downgrades to hold, target lifted from 3,648p to 3,743p.Pendragon: Panmure Gordon downgrades to sell, 13p target kept; Jefferies keeps buy rating and 20p target.Prudential: Investec maintains hold rating and 688p target.Reed Elsevier: Berenberg downgrades to hold.Rolls-Royce: Jefferies maintains buy rating and 950p target.Standard Chartered: Shore Capital puts buy rating under review; Oriel Securities downgrades to reduce; BofA Merrill Lynch downgrades to underperform; Nomura downgrades from buy to neutral; Credit Suisse keeps neutral rating; Deutsche Bank keeps hold rating.T Clarke: N+1 Brewin downgrades to hold, target cut from 60p to 50p.Thomas Cook: UBS ups target from 15p to 17p, neutral rating kept.TUI Travel: Jefferies keeps buy rating and 300p target.BC