The Chicago PMI will be published tomorrow (Dec 31). The Chicago Purchasing Managers Index determines the economic health of the manufacturing sector in Chicago region.
Any reading above 50 indicates expansion of the manufacturing sector, while a reading below 50 indicates contraction. The Chicago PMI can be of some help in forecasting the US ISM and usually has an impressive correlation with it.
A higher than expected reading should be taken as positive/bullish for the USD, while a lower than expected reading should be taken as negative/bearish for the USD.
Analysts predict a reading of 56.10, up from the previous 55.20.