The VN-Index posted its fourth straight positive session as it edged up by a tenth of a percent on Wednesday. Trading turnover on HOSE was muted at USD185.4mn vs the 20-day average of USD272.8mn. SAB (+4.3%) has skyrocketed nearly 23% since the beginning of July. GTN (+7.0%) soared to the daily trading ceiling, hitting a more than six month high.