Afren: UBS raises target from 150p to 160p, buy rating unchanged.African Barrick Gold: Investec cuts target from 562p to 404p, hold kept.APR Energy: UBS downgrades from neutral to sell, target slashed from 1,110p to 860p.BHP Billiton: Credit Suisse reiterates outperform recommendation and 2,460p target.Bunzl: Credit Suisse keeps underperform rating and 865p target.Daily Mail & General Trust: Investec maintains buy rating and 578p target.Debenhams: Merchant Securities downgrades from buy to hold; Investec puts 55p target under review, hold recommendation unchanged.GKN: Credit Suisse maintains outperform rating and 240p target.Hays: Oriel Securities upgrades from hold to add.Hiscox: Jefferies upgrades from hold to buyIMI: Jefferies upgrades from hold to buy, target hiked from 840p to 1,150p.Ladbrokes: Peel Hunt downgrades from buy to hold, target left at 173p; Investec keeps hold rating and 145p target.Moneysupermarket.com: Investec ups target from 124p to 117p, hold rating kept.Prudential: UBS lifts target from 800p to 875p, buy rating unchanged.SABMiller: Investec maintains hold recommendation and 2,610p target.Standard Chartered: Investec reiterates buy rating and 1,800p target.WH Smith: Investec puts 575p target under review, buy stance maintained; Bank of America ML lifts target from 600p to 625p, gives buy rating.BC