美股三大指数集体高开，中概股涨跌不一

Market Overview - US stock indices opened higher with the Dow Jones up 0.19%, Nasdaq up 0.33%, and S&P 500 up 0.22% [1] - Chinese concept stocks showed mixed performance, with Waterdrop, NIO, and New Oxygen rising over 3%, while Kingsoft Cloud fell over 3% [1] Global Economic News - A warning from business organizations indicates that US tariffs could lead to a 0.8% loss in Italy's GDP by 2027 if a 30% tariff on EU goods is implemented [2] Corporate News - BlackRock analysts noted that European corporate earnings have already factored in tariff risks, suggesting potential for market upside as long as trade shocks are avoided [3] - JD.com announced significant investments in three leading companies in the intelligent robotics sector, indicating a strategic focus on enhancing retail, logistics, and service collaboration [4] - Lexin announced a $60 million stock repurchase plan, with the CEO planning to personally invest up to $10 million in company shares, aiming to enhance shareholder returns [5] - Huami Technology experienced a stock price surge of 395.86% in July, driven by positive revenue growth signals for Q2 2025, marking a significant recovery after three years of stagnation [6]