美国5月Markit综合PMI初值 52.1，预期 50.3，前值 50.6。

Core Insights - The preliminary value of the Markit Composite PMI for May in the United States is reported at 52.1, which exceeds the expected value of 50.3 and the previous value of 50.6 [1] Economic Indicators - The current PMI indicates a positive outlook for economic activity, as a value above 50 suggests expansion in the private sector [1] - The increase from the previous month indicates a strengthening in economic conditions, reflecting improved business sentiment [1]