Dollar General Corp DG shares are trading lower Wednesday. This comes after yesterday's surge of more than 15%.  The move was driven by the news that same-store sales increased by 5.4%. This was ahead of estimates.There is a good chance the move lower continues. A classic bull trap may be occurring. This can be a bearish dynamic and it is why Dollar General is our Stock of the Day.Resistance in a market is a price level or narrow range where there is a large amount of sell interest.If a stock is trending or ...