The maintenance of a Buy rating suggests a positive outlook on WEC Energy Group's stock, indicating that the analyst sees potential for growth or a positive performance in the short term. However, the reduction in the price target could signal a tempered expectation of the stock's growth potential or a response to recent market conditions or company performance that may not be as favorable as previously thought. This could lead to a neutral short-term impact as investors digest both the continued endorsement and the lowered expectations.