Impressive earnings results helped the Energy Select Sector SPDR ETF (XLE) to gain 2% on Friday. For a look at the issues currently facing the markets, make sure to read today's Ahead of Wall Street article The Dow Jones Industrial Average (DJI) rose 1.1%, or 195.10 points, to close at 17,390.52. Markets received a boost on Friday following Bank of Japan's (BOJ) announcement that it will expand its assets purchasing program to deal with weak economic growth and low inflation.