The VN-Index fell for a ninth day in the last 11 on Tuesday, pulling back half a percent for its biggest loss in six weeks and dropping below 800 for the first time since September 12. Energy names PLX (-2.9%) and GAS (-1.0%) made the largest contributions among laggards as global oil prices extended a week-long slump in Asian trading today. PVD (-2.5%) and PVS (-1.2%) also decreased.