Stifel's decision to maintain a Buy rating for FedEx indicates a positive outlook for the company's stock. However, the lowered price target from $264.00 to $259.00 suggests a slightly reduced growth potential. The 1.91% decline in FedEx's share price may be a short-term reaction to the news, but the maintained Buy rating and potential 13.98% increase in share price indicate a positive impact on the stock in the short term.