VN-Index down for fourth day as banks, energy extend pullback. The VN-Index fell 3.78 points, or 0.6%, to 611.03 and has now dropped 1.8% over the last four sessions. Financial and energy firms led the market lower. VCB (-2.7%), which has slumped almost 6% in four days, was the top contributor, followed by CTG (-2.3%), which is down 5% since last Wednesday. BID (-2.2%) and MBB (-1.9%) also fell while STB (-1.7%) has slid almost 8% in four sessions after jumping 23% over the previous four days.