Explanation: It is information, received from surveys of about 200 purchasing managers regarding the producing industry in the Chicago area whose allocation of manufacturing companies mirrors the state spreading.

Significance: According to the Philadelphia Fed Index, it helps to predict the results of the much more closely watched ISM index, which take place every business day. The ISM index is the major pointer of overall financial activity.

Readings above 50 show an expanding factory sector, and below 50 - tell about reduction.

Meaning: Browse of purchasing managers in Illinois, Indiana and Michigan.

Why it is vital: This browse show the same information as the Institute for Supply Management survey about half the time and is followed as a second part of corporate purchasing schedule.