Tuesday broker round-up UPDATE

African Minerals: Canaccord Genuity lowers target price from 20p to 15p with a hold recommendation.Aggreko: Exane initiates with a target price of 1500p and an underperform rating.Amec: Liberum Capital cuts target price from 1035p to 908p staying with its sell recommendation.Antofagasta: Canaccord Genuity reduces target price from 835p to 790p maintaining a hold recommendation. Nomura cuts target price from 720p to 700p, while upgrading to neutral.Arrow Global: Numis raises target price from 287p to 326p upgrading to buy.AstraZeneca: Deutsche Bank raises target price from 4000p to 4100p and stays with its hold recommendation. Panmure Gordon raises target price from 4400p to 4700p upgrading from hold to buy.Avon Rubber: N+1 Singer ups target price from 720p to 750p and keeps its buy recommendation.BAE Systems: Cantor Fitzgerald downgrades to hold with a target price of 460p.BHP Billiton: Canaccord Genuity cuts target price from 2020p to 1950p and retains a hold recommendation.BTG: Deutsche Bank raises target price from 655p to 745p keeping a buy recommendation.Central Asia Metals: Canaccord Genuity ups target price from 190p to 210p keeping a buy recommendation.Cranswick: N+1 Singer reduces target price from 1291p to 1246p reiterating a hold recommendation.Dixons Carphone: UBS initiates with a target price of 415p and a buy recommendation.easyJet: JP Morgan reduces target price from 1909p to 1815p and keeps an overweight rating.GlaxoSmithKline: Deutsche Bank cuts target price from 1450p to 1420p staying with a hold recommendation.Gooch & Housego: Investec cuts target price from 740p to 720p downgrading to add.Hummingbird Reources: Northland lowers target price from 98p to 94.2p and reiterates a buy recommendation.Hunting: Liberum Capital cuts target price from 802p to 763p downgrading to sell.ITE Group: Westhouse Securities cuts target price from 216p to 193p, while upgrading from neutral to add.John Wood Group: Liberum Capital reduces target price from 736p to 610p downgrading to sell.Kazakhmys: Canaccord Genuity ups target price from 260p to 280p maintaining a hold recommendation.Management Consulting: Canaccord Genuity lowers target price from 28p to 22p downgrading from buy to a speculative buy recommendation. Peel Hunt lowers target price from 30p to 21p and downgrades from buy to hold.Metminco: Canaccord Genuity lowers target price from 10p to 70p and keeps its speculative buy recommendation.Next Fifteen Communications: Canaccord Genuity shifts target price from 145p to 151p retaining a buy recommendation. Investec sOrsu Metals: Canaccord Genuity lowers target price from 4p to 3p and stays with its speculative buy recommendation.Petroceltic: Westhouse Securities downgrades to neutral with a target price of 240p.Petrofac: Liberum Capital reduces target price from 1223p to 1112p and keeps a hold recommendation.Pure Wafer: WH Ireland cuts target price from 115p to 96p, while leaving its buy recommendation unchanged.Rio Tinto: Canaccord Genuity reduces target price from 4165p to 4080p staying with its buy recommendation.Robert Walters: Oriel upgrades from add to buy.Sinclair IS Pharma: N+1 Singer lowers target price from 40p to 36p maintaining a buy recommendation.Spirent: Investec cuts target price from 105p to 80p, while its hold recommendation is kept.