VN-Index soars to just shy of 8-year high. As the second half of 2016 begins, Vietnamese stocks appear poised to break through a major resistance level. Over the last two years, the VN-Index has twice tested the 640 level only to turn and head back down to the 520s. Today, investors sent shares above 643 in the afternoon session before late selling left the index up 8.04 points, or 1.3%, to 640.30, its highest close since 640.75 on September 3, 2014.