分析师警告：若未有更多板块加入反弹，美股未来数月或出现抛售潮

Core Viewpoint - Analysts warn that without more sectors joining the rebound, a sell-off in the US stock market may occur in the coming months [1] Market Performance - The S&P 500 index has rebounded strongly since the drop in April and is now less than 1% away from its historical high [1] - The proportion of constituent stocks trading above their 200-day moving average, a key indicator of market breadth, has remained unchanged since May [1] Sector Participation - Analysts from multiple institutions, including Janney Montgomery Scott, indicate that a lack of strong support from other major market sectors such as financials, transportation, and small-cap stocks could lead to a loss of upward momentum in the coming months [1] Market Sentiment - The market is currently viewed as severely overbought, with leading forces concentrated mainly in the S&P 500 and Nasdaq 100 indices [1] - Technical strategist Dan Wantrobski emphasizes the importance of market breadth following the index breakout, noting that a failure to see this could lead to a potential pullback [1]