Friday broker round-up

Aviva: SocGen upgrades to hold from sell.Aberdeen: UBS cuts target from 310p to 300p, buy rating unchanged.Associated British Foods: Nomura raises target from 1,375p to 1,400p, buy recommendation unchanged.AstraZeneca: Jefferies downgrades from buy to hold, target left at 2,975p.AVEVA: Berenberg upgrades to buy, target lifted from 1,660p to 1,927p.Babcock: HB Markets downgrades to hold.Barclays: Bernstein downgrades to market perform, target cut from 360p to 180p.Big Yellow Group: Bank of America ML downgrades to neutral, target lifted from 285p to 315p.Carillion: UBS downgrades to sell, target cut from 285p to 230p; Liberum Capital downgrades to sell, target cut from 270p to 235p, sell rating kept.Dunlem: UBS cuts target from 585p to 560p, buy rating kept.Intertek: Morgan Stanley downgrades to underweight, target raised from 2,510p to 2,740p.Ladbrokes: Davy Research downgrades to neutral.Lonmin: CIBC downgrades to sector performer, target cut from 1,250p to 735p.Marshalls: Northland Capital downgrades to hold, target cut from 110p to 85p.Sage: Berenberg upgrades to buy.Sainsbury: AlphaValue downgrades to reduce.Travis Perkins: Morgan Stanley downgrades to underweight, target cut from 1,260p to 1,050p.Wolseley: Morgan Stanley downgrades to equal weight, target cut from 2,700p to 2,540p.BC