Energy stocks lead VN-Index down for second day as oil prices slide. Trading on the VN-Index looked for most of Monday as a rerun of Friday's action. The index jumped to near 665 in the first hour only to slide back to be little changed well into the afternoon session. Then, about an hour before the close, energy names, led by GAS (-3.0%), PVD (-4.3%) and PVS (-1.1%) dropped sharply, following a steep drop in Brent crude oil to below USD46/bbl in Asian trading.