Tuesday broker round-up

Tullow Oil: Deutsche Bank reiterates hold and keeps target price at 370p.

Tesco: Citi reiterates neutral and 235 target price.

BHP Billiton: Barclays reiterates overweight and lifts target to 3,500p from 3,300p.

Rio Tinto: Barclays downgrades to equalweight and lower target to 2,850p from 3,350p.

Sky: Numis reiterates add and 1,200p target.

Just Eat: Citi reiterates buy and lifts target to 515p from 495p.

Petra Diamonds: Barclays reiterates overweight but lowers target to 240p from 262p.

Vedanta: Barclays upgrades to overweight and improves target to 650p from 400p.

Aveva: Jefferies reiterates buy and raises targetto 1,840p from 1,700p.

ARM Holdings: Investec reiterates hold and 1,140p target.

Petrofac: Deutsche Bank reiterates hold and 890p target.

Fresnillo: Barclays reiterates equalweight and lowers target to 750p from 835p.