Dollar Tree (DLTR) is one of the stocks most watched by Zacks.com visitors lately. So, it might be a good idea to review some of the factors that might affect the near-term performance of the stock.Over the past month, shares of this discount retailer have returned -1.7%, compared to the Zacks S&P 500 composite's -0.4% change. During this period, the Zacks Retail - Discount Stores industry, which Dollar Tree falls in, has lost 2.4%. The key question now is: What could be the stock's future direction?Althoug ...