美国4月标普全球服务业PMI初值 51.4，预期52.5，前值54.4。

Core Insights - The preliminary value of the US Services PMI for April is reported at 51.4, which is below the expected 52.5 and significantly lower than the previous value of 54.4 [1] Group 1 - The Services PMI indicates a slowdown in the service sector, as the current reading of 51.4 suggests a deceleration in growth compared to the previous month [1] - The decline from the previous value of 54.4 to 51.4 represents a notable decrease, indicating potential challenges in the service industry [1] - The expectation of 52.5 was not met, highlighting a potential shift in market sentiment and economic conditions affecting service providers [1]