Thursday broker round-up

AMEC: JP Morgan Cazenove downgrades from overweight to neutral, target lifted from 1,252p to 1,344p.AstraZeneca: Liberium Capital upgrades from sell to buy, target lifted from 2,700p to 3,100p.British Land: Espirto Santo downgrades from buy to neutral.Capital Shopping Centres Group: Societe Generale downgrades from hold to sell.Centrica: Nomura ups target from 350p to 355p, neutral rating kept.Cobham: UBS raises target from 225p to 255p, buy rating unchanged. Derwent London: Societe Generale downgrades from hold to sell; Espirto Santo downgrades from buy to neutral.Drax: Nomura ups target from 485p to 495p, reduce rating kept.ENRC: UBS cuts target from 900p to 820p, buy rating unchanged.Gem Diamonds: Citigroup downgrades from buy to sell, lifts target from 261p to 283p.Great Portland Estates: Societe Generale upgrades from sell to hold; Espirto Santo downgrades from buy to neutral.Hammerson: Espirto Santo downgrades from buy to neutral.Kingfisher: Investec puts hold rating and target price under review; UBS maintains buy rating and 310p target.Ladbrokes: Investec cuts target from 154p to 145p, hold recommendation maintained.Laird: Investec upgrades from hold to buy, target hiked from 130p to 225p; UBS downgrades from buy to neutral, target raised from 190p to 198p.Land Securities: Espirto Santo downgrades from buy to neutral.Next: Investec maintains buy rating, target price under review; Seymour Pierce downgrades from buy to hold.Sainsbury: AlphaValue downgrades to sell from reduce and raises price target to 271.2p from 270.4p.Severn Trent: Nomura ups target from 1,640p to 1,645p, neutral rating kept.Shaftesbury: Espirto Santo downgrades from buy to neutral.SSE: Nomura ups target from 1,405p to 1,425p, reduce rating kept.William Hill: Investec cuts target from 300p to 285p, buy rating kept. Astrazeneca Kingfisher Gem Diamonds Di Centrica SSE Land Securities Hammerson Drax Next Sainsbury's Severn Trent