Citigroup (C) 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 U.S. bank have returned -2.4%, compared to the Zacks S&P 500 composite's +4% change. During this period, the Zacks Banks - Major Regional industry, which Citigroup falls in, has gained 3.7%. The key question now is: What could be the stock's future direction?Although media reports o ...