华尔街警告：美股估值高企与不确定性恐引发新一轮波动

Core Insights - Wall Street strategists warn that the U.S. stock market may face more volatility in the short term due to government shutdowns, trade uncertainties, and high valuations [1] - The market's sensitivity to news reflects its fragility, with the S&P 500 index having gone 97 trading days without a 5% pullback, exceeding the long-term average of 59 days, indicating a potential technical correction [1] - Analysts from Morgan Stanley and JPMorgan highlight the risks of market corrections due to high valuations, crowded positions, and trade instability [1] Group 1 - Multiple institutions believe that political and fiscal news, along with Federal Reserve policies, could trigger greater volatility in the final months of the year [1] - Simplify's multi-asset strategy head, Paisley Nardini, emphasizes the market's heightened sensitivity to news [1] - Morgan Stanley's Michael Wilson points out the ongoing risk of corrections in the short term [1] Group 2 - JPMorgan's Andrew Tyler warns of increased short-term risks due to high stock valuations and trade uncertainties [1] - The S&P 500's extended period without a significant pullback suggests a potential shift towards a technical correction phase [1]