The news of BMO Capital lowering DTE Energy's price target from $127 to $121 while maintaining a Market Perform rating may not have a significant short-term impact on the stock price. However, it may influence investors' perception of the company's future performance and valuation. The relevance is high as DTE Energy is the main subject of the article, and the importance is significant as it involves a change in the price target by a well-known analyst.