In its first session following the Tet Holiday, the VN-Index jumped 3.7% to hit a three-week high as investors focused on blue-chip stocks. Vingroup stocks VHM (+4.3%), VIC (+1.7%) and VRE (+7.0%) increased. GAS (+6.9%) surged to the daily trading ceiling. TCB (+6.7%) and VPB (+6.9%) both soared to an all-time high. Fellow banks VCB (+2.9%), CTG (+3.9%) and BID (+3.2%) also climbed.