市场情绪回暖，美股持续反弹

Market Overview - The US stock market experienced a strong rebound, with major indices rising for the second consecutive trading day, driven by expectations of easing trade tensions [1] - The Dow Jones Industrial Average increased by 419.59 points, or 1.07%, closing at 39,606.57 points; the S&P 500 rose by 1.67% to 5,375.86 points; and the Nasdaq Composite surged by 2.50% to close at 16,708.05 points [1][2] - Despite the gains, all three indices failed to maintain their intraday highs, with the Dow at one point up over 1,100 points and the S&P up 3.44% [1] Trade Policy Impact - Investor sentiment improved significantly due to positive signals regarding trade policy, with the US Treasury Secretary indicating the potential for a "significant trade agreement" [6][9] - President Trump announced plans to "substantially reduce" tariffs on Chinese goods, which was echoed by Treasury Secretary Becerra, suggesting that high tariffs on Chinese goods are unsustainable [11][10] - The easing of trade tensions has led to a recovery in stocks with high external exposure, particularly among major tech companies, with Apple rising over 2% and Nvidia increasing by more than 3% [9] Monetary Policy Stability - The market also received support from expectations of stability in monetary policy, as President Trump stated he had no intention of replacing Federal Reserve Chairman Powell, enhancing confidence in future monetary policy independence [9][11] - Analysts noted that the market is highly sensitive to any signs of easing tensions, as ongoing policy confrontations have pressured global supply chains and corporate earnings [9] Tesla's Performance - Tesla's stock surged over 5% following CEO Elon Musk's announcement that he would dedicate more time to the company, alleviating investor concerns about his divided attention [13] - Tesla reported a significant decline in Q1 net profit to $409 million, down 71% year-over-year, attributed to competitive pressures and reputational impacts from Musk's role in the Trump administration [15] - The company's revenue for Q1 was $19.335 billion, a 9.2% decrease year-over-year, falling short of market expectations [15]