Wednesday broker round-up

AstraZeneca: Jefferies raises target from 2,975p to 3,100p, hold rating kept.Avon Rubber: Investec reiterates hold rating and 315p target.BTG: Jefferies maintains hold rating and 410p target.Cobham: Jefferies reiterates buy recommendation and 230p target; Investec keeps sell rating and 200p target.Dee Valley: Investec ups target from 1,245p to 1,252p, hold rating kept.Heritage Oil: UBS ups target from 190p to 250p, buy rating kept.Hikma: UBS downgrades from buy to neutral, 755p target unchanged.IAG: Liberum Capital downgrades to hold.InterContinental Hotels: UBS ups target from 1,130p to 1,230p, sell rating kept; Natixis hikes target from 1,690p to 1,900p, buy rating kept; Nomura raises target from 1,472p to 1,670p, neutral rating kept; JPMorgan Cazenove downgrades to neutral.Melrose: Bank of America Merrill Lynch upgrades to buy, target cut from 440p to 270p.National Grid: Liberum Capital upgrades to buy.Premier Foods: UBS cuts target from 100p to 70p, sell rating kept.Redefine International: Investec keeps buy rating and 40p target.Secure Trust Bank: Numis downgrades to hold, target cut from 1,223p to 1,167p.Serco: UBS downgrades from buy to neutral, 600p target unchanged.Smiths Group: Bank of America Merrill Lynch downgrades to underperform from neutral, 1,150p target kept.Spirent Communications: Singer Capital Markets downgrades to fair value, target cut from 175p to 157p.Standard Chartered: Credit Suisse maintains neutral rating and 1,460p target; Redburn downgrades to neutral; RBC Capital Markets downgrades to sector performer; Berenberg upgrades to buy.Tate & Lyle: Investec keeps hold rating and 650p target.Telecity: UBS ups target from 900p to 975p, buy rating kept.BC Astrazeneca International Airlines InterContinental Hotels National Grid Avon Protection Hikma Pharmaceuticals Tate & Lyle Premier Foods Standard Chartered Serco Melrose Smiths Group