Thursday broker round-up

(Sharecast News) - TalkTalk: Barclays upgrades to overweight with a target price of 150p.Applegreen: Berenberg reiterates buy with a target price of 600p.WPP Group: Deutsche Bank reiterates hold with a target price of 1,510p.Senior: JP Morgan reiterates overweight with a target price of 390p.BHP Billiton: JP Morgan reiterates neutral with a target price of 1,910p.boohoo: RBC Capital Markets reiterates underperform with a target price of 140p.Avast: Barclays reiterates overweight with a target price of 300p.Empiric Student Property: Numis reiterates hold with a target price of 98p.Vectura Group: Numis reiterates buy with a target price of 160p.Onesavings Bank: Numis downgrades to hold with a target price of 470p.Barclays: Jefferies reiterates buy with a target price of 266p.Ricardo: Berenberg reiterates sell with a target price of 860p.Bakkavor: Kepler reiterates hold with a target price of 195p.