MNI Chicago Report
The composite Chicago Business Barometer (often referred to as the “Chicago Purchasing Managers’ Index” or “Chicago PMI”) and associated indices are reported monthly in the MNI Chicago Report. The MNI Chicago Report includes the Chicago Business Barometer as well as a series of Business Activity and Buying Policy indices. The MNI Chicago Report is developed by Deutsche Boerse in partnership with the ISM-Chicago. 
The MNI Chicago Report characterizes expanding or contracting US economic activity through a survey panel of purchasing/supply-chain professionals, primarily drawn from membership of the Institute for Supply Management-Chicago (ISM-Chicago). The report occasionally is characterized as a local survey of manufacturing entities. However, the MNI Chicago Report includes service as well as manufacturing activities of the global operations of the responding companies. Chicago is a common site of Fortune 500 headquarters, and the Chicago survey panel represents and reports on economic activity well beyond manufacturing in the Chicagoland area.
The indices in the MNI Chicago Report represent the breadth of activity compared to the prior month (technically “diffusion indices”). As such, this report measures the pervasiveness of changes in economic activity, but does not reflect the magnitude of either advances or declines. The composite Chicago Business Barometer provides an overall gauge of business activity. 
The MNI Chicago Report includes seven Business Activity indices, reported both as raw data and seasonally adjusted values (more/faster; same; less/slower – relative to the prior month) to illuminate trends in economic activity:
- New Orders
- Order Backlogs
- Supplier Deliveries
- Prices Paid
Since the early 1970’s, the Buying Policy indices provide a monthly characterization of lead times for three major categories of products, answering the question: Average days required to source?
- Production Materiel
- MRO Supplies
- Capital Equipment
The Chicago Business Barometer is computed from five weighted raw indices (see series and weights below) and, like the component indices, is seasonally adjusted to support month-to-month comparisons and reveal longer term trends more clearly:
- Production 0.25
- New Orders 0.35
- Order Backlogs 0.15
- Employment 0.10
- Supplier Deliveries 0.15
This market-moving data is released at 9:42am ET by subscription, 3 minutes prior to public release at 9:45am ET. The survey results typically are released on the last working day of each month.
MNI Chicago Report Specific release date information 
Alyce Andres-Frantz, product manager, lead analyst, and commentator
About the ISM-Chicago
ISM-Chicago is a non-profit association dedicated to strengthening the community of procurement and supply professionals in the Chicagoland area. As an affiliate of the Institute of Supply Management (ISM), the organization is committed to the ongoing professional development of its members and the purchasing/ supply management profession through education, research and communication. 
The membership is comprised of procurement and supply chain professionals and managers employed in the private and public sectors throughout the greater Chicago area.