Thursday broker round-up

Tritax Big Box Reit: Barclays downgrades to underweight with a target price of 130p.

Segro: Barclays reiterates overweight with a target price of 855p.

BHP Billiton: JP Morgan reiterates neutral with a target price of 1,940p.

Diploma: RBC Capital Markets reiterates sector perform with a target price of 1,400p.

Victrex: Liberum reiterates buy with a target price of 2,600p.

John Laing: Peel Hunt reiterates buy with a target price of 440p.

Atalaya Mining: Canaccord reiterates buy with a target price of 380p.

Stobart: Canaccord reiterates buy with a target price of 350p.

Persimmon: Berenberg reiterates buy with a target price of 2,490p.

Premier Oil: Berenberg reiterates buy with a target price of 130p.

Anglo Pacific: Berenberg reiterates buy with a target price of 226p.