The Federal Reserve Bank of Chicago released its National Activity Index on Thursday. The index fell to -0.41 in August from 0.51 in July. July's figure was revised up from 0.34.
The decline was mainly driven by a weakness in the production.
The production-related indicator declined to -0.30 in August from +0.36 in July.
The employment-related indicator dropped to -0.01 in August from +0.18 in July.
The personal consumption and housing indicator was down to -0.08 in August from -0.06 in July.