The MNI Chicago Business Barometer fell 3.6 points to a five-month low of 50.6 in October from 54.2 in September, suggesting economic activity in the US lost some momentum having picked up in Q3. The latest outturn marked a weak start to Q4, with the three-month trend softening to 52.1 in October from 53.8 in the three months to September.

The Barometer decline was led by a slowdown in Production, which fell 5.4 points to 54.4, giving up most of the gain seen last month but remaining above the 2016 average. New Orders also subtracted from the Barometer, falling to the lowest level since May.