Flash Index

An archive of the Flash Index containing monthly data from June 1981 to the most current release.

About the Flash Index

The Illinois Flash Index was created in 1995 at the Institute of Government and Public Affairs at the University of Illinois to provide an instantaneous reading of the performance of the Illinois economy. The index has become the most widely used monthly economic indicator in Illinois, appearing in many newspapers and on broadcast news outlets. It has been reproduced in economic data provided by the state’s Department of Commerce and Economic Opportunity and the Illinois State Chamber of Commerce, as well as more specialized sources such as the McGraw-Hill Midwest construction report.

The findings and commentary presented here do not necessarily reflect the views of The Institute of Government and Public Affairs or the University of Illinois System. They should not be considered as a forecast of future events or a guarantee of future results for investment and related purposes.

Flash Index

102.4
Dec 2024
102.2
Jan 2025
102.2
Feb 2025
102.4
Mar 2025
102.4
Apr 2025
102
May 2025
101.9
Jun 2025
101.8
Jul 2025
101.7
Aug 2025
101.8
Sep 2025
101.6
Oct 2025
101.7
Nov 2025
101.7
Dec 2025

Recent Reports

View All

Illinois Flash Index finished the year holding steady

Read More

November Illinois Flash Index increased slightly

Read More

Author

Fred Giertz
Fred Giertz
Affiliation Professor Emeritus, Institute of Government and Public Affairs | University of Illinois Urbana-Champaign
Email jgiertz@illinois.edu

Professor Emeritus, Institute of Government and Public Affairs | University of Illinois Urbana-Champaign