Tuesday broker round-up

African Barrick Gold: Deutsche Bank raises target from 510p to 540p, hold rating kept.African Minerals: Deutsche Bank cuts target from 708p to 610p, buy rating kept.Allocate Software: N+1 Brewin downgrades to hold, target cut from 94p to 80p.Babcock: Investec raises target from 970p to 100p, buy rating kept.ENRC: Deutsche Bank cuts target from 990p to 900p, buy rating kept.Escher Group: Panmure Gordon raises tagged from 364p to 367p, buy rating kept.Faroe Petroleum: Seymour Pierce ups target from 263p to 286p, buy rating reiterated.First Derivatives: Merchant Securities initiates coverage with buy recommendation and 605p target.Hammerson: Investec upgrades from sell to hold, target lifted from 415p to 465p.IMI: Morgan Stanley initiates coverage with overweigh rating and 1,123p target.Kazakhmys: Deutsche Bank cuts target from 1,165p to 1,080p, buy rating kept.Lonmin: Deutsche Bank cuts target from 470p to 445p, sell rating kept.Lonrho: Jefferies initiates coverage with buy rating and 15p target.Inmarsat: HSBC downgrades to neutral.QinetiQ: UBS raises target from 180p to 190p, buy rating kept.Providence Resources: Liberum Capital cuts target from 2,000p to 1,980p, buy rating kept.Rio Tinto: Deutsche Bank cuts target from 4,850p to 4,580p, buy rating kept.BC