6月30日电，美国6月芝加哥PMI为40.4，预期43，前值40.5。

Core Viewpoint - The Chicago PMI for June in the United States is reported at 40.4, which is below the expected 43 and slightly lower than the previous value of 40.5 [1] Group 1 - The Chicago PMI indicates a contraction in manufacturing activity, as a reading below 50 typically signifies a decline [1] - The current PMI value of 40.4 suggests a weakening economic environment, raising concerns about future growth prospects [1] - The decline from the previous month's value of 40.5 reflects ongoing challenges in the manufacturing sector [1]