美国5月ISM制造业指数 48.5，预期 49.2，前值 48.7。

Core Viewpoint - The ISM Manufacturing Index for May in the United States is reported at 48.5, which is below the expected 49.2 and slightly lower than the previous value of 48.7 [1] Group 1 - The ISM Manufacturing Index indicates a contraction in the manufacturing sector as it remains below the neutral level of 50 [1] - The decline from the previous month's value suggests ongoing challenges within the manufacturing industry [1] - The index's performance is a key indicator for economic health and may influence investment decisions in related sectors [1]