Why Dollar General might struggle Dollar General (DG -0.45%) shares have risen by 33% this year (as of Tuesday afternoon), dwarfing the comparable performance of the S&P 500 index and its 0.5% gain. Despite the volatility and uncertainty of the economy, the discount retailer has become a bit of safe haven investment to hold on to this year. A big test for the retailer will come on June 3, when the company reports its latest earnings numbers. The stock could move quickly following the release of those number ...