Thursday broker round-up

African Minerals: Jefferies keeps buy rating and 1,100p target.Aggreko: Investec maintains buy rating.Cairn Energy: Nomura cuts target from 500p to 434p, buy rating kept.Faroe Petroleum: Nomura cuts target from 213p to 209p, buy rating kept.FirstGroup: Jefferies downgrades from buy to hold, target slashed from 430p to 207p.Grainger: Jefferies keeps buy recommendation and 128p target.Hays: Jefferies raises target from 110p to 120p, buy rating kept; Investec reiterates buy rating.Immunodiagnostic Systems: Investec upgrades from hold to buy, 450p target kept.JD Sports Fashion: Investec cuts target from 980p to 900p, buy rating retained.Logica: Jefferies upgrades from underperform to hold, target left at 80p; Merchant Securities upgrades from sell to hold, 85p target price retained.Marks & Spencer: Investec ups target from 300p to 325p, hold rating kept.Michael Page: UBS cuts target from 470p to 440p, neutral recommendation kept.Mondi: UBS ups target from 550p to 570p, neutral rating maintained.Mothercare: Investec puts target under review, remains a seller.Ophir Energy: Nomura cuts target from 667p to 646p, buy rating kept.Premier Oil: Nomura cuts target from 485p to 481p, reduce rating kept.Soco International: Nomura cuts target from 400p to 392p, buy rating kept.Tesco: Jefferies reiterates buy recommendation and 400p target; Nomura reiterates buy rating and 430p target.Tullow Oil: Nomura raises target from 1,650p to 1,663p.Volex: Jefferies maintains buy rating and 360p target; Investec keeps buy rating and 315p target.BC Tullow Oil Tesco Mothercare Hays Volex Marks & Spencer Capricorn Energy PLC Firstgroup Grainger plc Mondi JD Sports