University of Michigan released the preliminary reading for its consumer sentiment survey, which came at 99 in October, down from 100.1 in September, and missing estimates of 100.4.
As of 02:20 GMT, the dollar index rose 0.31% against a basket of major rivals, with an intraday high at 95.33, and the lowest since September 28 at 94.95.
The current economic conditions gauge in the same survey receded as well to 114.4 from 115.2, while the economic outlook gauge receded to 89.1 from 90.5.
One-year inflation outlook rose to 2.8% from 2.7%, while five-year expectations receded to 2.3% from 2.5%.