Wednesday broker round-up

African Barrick Gold: Investec raises target from 485p to 530p, hold rating kept.Aggreko: Seymour Pierce maintains buy rating and 2,500p target.AstraZeneca: Panmure Gordon keeps hold rating and 3,000p target.British American Tobacco: Jefferies keeps buy rating and 3,730p target; Panmure Gordon cuts target from 3,700p to 3,650p, buy rating kept; Investec keeps buy rating and 3,480p target.Centamin: Investec downgrades from buy to hold, target lifted from 95p to 106p.CRH: AlphaValue upgrades from add to buy.CSR: JPMorgan Cazenove downgrades to neutral; UBS ups target from 310p to 330p, neutral rating kept.Diamondcorp: WH Ireland Securities initiates coverage with buy rating and 12p target.Direct Line: JPMorgan Cazenove initiates coverage with neutral rating and 197p target.Experian: Jefferies downgrades from buy to hold, target upped from 1,060p to 1,200p; UBS raises target from 970p to 1,040p, neutral rating kept.Fidessa: Goldman Sachs downgrades to neutral, target cut from 2,050p to 1,580p.Hikma: Jefferies ups target from 875p to 890p, buy rating kept.Home Retail: Panmure Gordon hikes target from 51p to 80p, sell rating kept; Panmure Gordon keeps buy rating and 115p target.HSBC: Investec keeps hold rating and 590p target.Imperial Tobacco: Goldman Sachs upgrades to neutral, target cut from 2,540p to 2,500p.InterContinental Hotels: AlphaValue upgrades from reduce to add; Panmure Gordon keeps hold rating and 1,670p target.National Express: Jefferies maintains buy rating and 300p target; Panmure Gordon keeps hold rating and 250p target.Next: Panmure Gordon ups target from 3,743p to 3,770p, hold rating kept.Ophir Energy: Jefferies keeps buy rating and 800p target.Punch Taverns: Panmure Gordon cuts target from 11p to 7p, hold rating kept.Randgold Resources: Investec downgrades from buy to hold, target lifted from 6,917p to 7,715p.Regus: Panmure Gordon keeps buy rating and 140p target.Spirent Communications: Investec keeps buy rating and 195p target.Sports Direct: Panmure Gordon raises target from 350p to 450p, buy rating kept.Tesco: AlphaValue downgrades from buy to add.Travis Perkins: Panmure Gordon keeps buy rating and 1,200p target.Trinity Mirror: Panmure Gordon keeps buy rating and 90p target.Wolseley: Jefferies keeps hold rating and 2,340p target.WPP: UBS downgrades from buy to neutral, target cut from 960p to 875p.BC