Thursday broker round-up - UPDATE

APR Energy: Seymour Pierce upgrades from reduce to hold, target left at 650p.ASOS: Seymour Pierce raises target from 1,900p to 2,350p, hold rating kept.AstraZeneca: Jefferies keeps hold rating and 3,00p target.Berkeley Group: Goldman Sachs upgrades to conviction buy, target lifted from 1,950p to 2,200p. British American Tobacco: Nomura keeps buy rating and 3,506p target.Debenhams: Seymour Pierce keeps hold rating and 110p target.Go-Ahead: Jefferies upgrades from hold to buy, target raised from 1,220p to 1,470p.Home Retail: HSBC upgrades to overweight, target lifted from 100p to 135p; Nomura keeps reduce rating and 85p target.Interserve: Panmure Gordon upgrades to hold, target hiked from 185p to 400p.Polymetal: Nomura raises target from 1,425p to 1,530p, buy rating kept.Reckitt Benckiser: Nomura raises target from 4,100p to 4,200p, buy rating kept; Credit Suisse lifts target from 3,500p to 3,700p, neutral rating kept.SEGRO: Jefferies keeps hold rating and 251p target; Investec keeps buy rating and 250p target.Tarsus Group: Investec ups target from 192p to 193p, buy rating kept.Unilever: Investec puts target under review, hold rating kept.Volex: Jefferies cuts target from 340p to 240p, buy rating kept.Whitbread: Citigroup downgrades to neutral, target lifted from 2,300p to 2,400p.Wolseley: Seymour Pierce maintains hold rating and 2,700p target.Workspace: Seymour Pierce lifts target from 270p to 330p, buy rating kept.WPP: Investec puts target under review, buy rating kept.BC Astrazeneca Unilever Berkeley Group Volex British American Tobacco Segro Whitbread ASOS Home Reit