Tuesday broker round-up

(ShareCast News) - Glencore: RBC Capital upgrades to outperform with a target of 135p. Barclays and JP Morgan stay at overweight and Goldman Sachs keeps at neutral.First Quantum Minerals: Goldman Sachs downgrades to sell with a target price of 130p.Randgold: Ubs downgrades to neutral, 6000p target. Jefferies reiterates hold and Nomura maintains reduce.Antofagasta: Goldman Sachs downgrades to sell, 250p target.Imagination Technologies: JP Morgan reiterates neutral with a 190p target and UBS keeps at buy with a target of 190p.Rio Tinto: JP Morgan stays at overweight, 1700p target, Goldman Sachs keeps at sell with a target of 1330p, RBC reiterates underperform and Exane BNP Paribas maintais neutral.BHP Billition: Goldman Sachs reiterates neutral, 650p target, JP Morgan stays at underweight with a target of 550p and RBC Capital keeps at sector perform, 700p target.Anglo American: Goldman Sachs reiterates sell with a target price of 200p and JP Morgan keeps at underweight with a 250p target.Intu: Goldman Sachs reiterates sell with a target of 289p.Derwent London: Goldman Sachs keeps at neutral, 3090p target.