Wednesday broker round-up

BHP Billiton: UBS reiterates buy and 1,625p target price.Rio Tinto: Deutsche Bank stays at buy and 4,200p target.Sky: Goldman Sachs maintains neutral and 1,200p target.Associated British Foods: Nomura lifts target to 2,850p from 2,760p and reiterates neutral.ARM Holdings: Exane BNP reiterates outperform.Unite Group: JP Morgan Cazenove reiterates overweight and takes target to 700p from 610p.Tate&Lyle: JP Morgan Cazenove lifts target to 700p from 600p and reiterates neutral. Rio Tinto Tate & Lyle AB Foods Unite