Tuesday broker round-up

WPP: Morgan Stanley downgrades to Equal Weight with a target price of 1600p.

Kaz Minerals: Morgan Stanley downgrades to Underweight with a target price of 480p.

Tullow Oil: RBC upgrades to Outperform with a target price of 260p.

Tate & Lyle: Investec upgrades to Hold with a target price of 650p

BP: Deutsche Bank reiterates Buy with a target price of 520p.

London Stock Exchange Group: Barclays reiterates Overweight with a target price of 4320p.

Whitbread: HSBC maintains Buy with a target price of 4800p.

Oxford Instruments: Jefferies reiterates Underweight with a target price of 850p.

Weir Group: Citigroup reiterates Buy with a target price of 2530p.

Smiths Group: Goldman Sachs reiterates Buy with a target price of 1850p.