美国4月ISM制造业指数 48.7，预期 47.9，前值 49。

Core Insights - The ISM Manufacturing Index for April in the U.S. is reported at 48.7, which exceeds the expected value of 47.9 and is a decrease from the previous value of 49 [1] Summary by Category - Economic Indicators - The ISM Manufacturing Index indicates a contraction in the manufacturing sector as it remains below the neutral level of 50, suggesting ongoing challenges in the industry [1] - The index's value of 48.7 reflects a slight improvement compared to expectations, indicating potential resilience in manufacturing despite the contraction [1]