Wednesday broker round-up
GB Group: Canaccord upgrades to buy with a target price of 870.0p.
Sirius Real Estate: Berenberg reiterates buy with a target price of 91.0p.
Alfa Financial Software: Berenberg reiterates sell with a target price of 65.0p.
Kore Potash: Canaccord reiterates speculative buy with a target price of 5.0p.