Exchange-traded funds are in line to receive a wall of money thanks to new US regulations coming into force in April 2017.

A 1,023-page document published by the US Department of Labor in April 2016, which had been six years in the making, was the updated Fiduciary Rule that expands the definition of 'investment advice' for individual retirement accounts and plans. It also defines which people and financial institutions would be considered 'fiduciary' in respect to the provision of investment advice.