BP: Bank of America downgrades to neutral.BG Group: Investec upgrades to hold, Deutsche reiterates buy and 1,460p target.HSBC: Morgan Stanley upgrades to equalweight.IMI: Investec downgrades to hold.Fresnillo: Bank of America upgrades to buy.Anglo American: Citi downgrades to sell and decreases target to 900p from 1,350p.BHP Billiton: Citi downgrades to neutral and lowers target to 1,500p from 1,800p.Rio Tinto: Citi downgrades to neutral and lowers target to 2,850p from 3,600p.Vedanta Resources: Citi downgrades to sell but improves target to 430p from 410p.Glencore: Citi downgrades to neutral and lowers target to 310p from 350p.