Ashtead: Jefferies reiterates buy rating and 300p target.Bodycote: Jefferies maintains buy recommendation and 475p target; Investec raises target from 400p to 410p, buy rating kept.BT Group: Jefferies raises target from 237p to 268p, buy rating maintained.Centrica: Investec ups target from 423p to 429p, buy recommendation kept.National Express: Jefferies reiterates buy stance and 300p target.Optos: Jefferies keeps buy recommendation, ups target from 270p to 290p.Randgold Resources: Nomura downgrades from buy to neutral, target slashed from 9,850p to 7,115p.Resolution: Nomura cuts target from 260p to 250p, reduce rating kept.Schroders: Investec keeps hold rating and 1,506p target.Shanks: Jefferies retains buy rating an 133p target.BC