State Street Investor Confidence Index (ICI) for August 2018 decreased to 94.3, down 7.4 points from July's revised reading of 101.7, according to the results released by State Street Global Exchange.

Confidence among North American investors declined, with the North American ICI decreasing from 103.1 to 92.5. Meanwhile, the European ICI rose by 8.1 points to 99