S&P Global Inc. (SPGI) has had an impressive run over the past year. The stock has gained 22%, outperforming the 19% rise of the industry it belongs to.Reasons Behind the RallyS&P Global is benefiting from the growing demand for business information services. The constantly increasing volume of data from private and government organizations has augmented the demand for improved enterprise-wide financial performance visibility. Increased demand for news, information and analytics solutions is driving the gro ...