市场分析：美股逼近历史高点，但仍面临关键考验

Core Viewpoint - The S&P 500 index is approaching historical highs but faces significant challenges as the earnings season approaches, with concerns over tariffs impacting growth expectations [1] Earnings Growth - Wall Street anticipates a mere 2.8% year-over-year growth in second-quarter profits for the S&P 500, marking the smallest increase in two years [1] - According to Yardeni Research, only 6 out of 11 sectors are expected to achieve profit growth, the lowest since the first quarter of 2023 [1] Market Valuation - Market observers warn that the current index valuation appears too high, necessitating either a surge in earnings or substantial interest rate cuts to justify the current levels [1] - Technical analysts suggest that without more sectors participating in the upward trend, the index may face declines in the coming months [1] Market Risks - There is a recognized risk in the stock market rebound, with concerns that the deterioration in some sectors may outpace the acceleration in others [1]