Monday broker round-up

Redcentric: Canaccord initiates buy with a target price of 195.0p.

Signature Aviation: Berenberg reiterates sell with a target price of 165.0p.

Energean Oil: Berenberg reiterates buy with a target price of 930.0p.

Tullow Oil: Canaccord reiterates hold with a target price of 20.0p.

Vistry Group: Citigroup reiterates neutral with a target price of 672.0p.

Ashmore Group: JP Morgan reiterates underweight with a target price of 360.0p.

Flutter Entertainment: Deutsche Bank reiterates hold with a target price of 11,800.0p.

Aviva: Jefferies reiterates buy with a target price of 350.0p.

Rio Tinto: Jefferies reiterates buy with a target price of 5,400.0p.

S4 Capital: Jefferies reiterates buy with a target price of 450.0p.