About This Article May 2011
The Chicago Fed National Activity Index was –0.45 in April, down sharply from +0.32 in March.

Index Shows Economic Activity Weakened in April
Last Updated: 05/23/11
Led by declines in production-related indicators, the Chicago Fed National Activity Index fell to –0.45 in April from +0.32 in March. April marked the lowest reading of the index since August 2010. Three of the four broad categories of indicators that make up the index deteriorated from March, but two of those three categories made positive contributions to the index in April.