Foreign exchange funds double average returns due to the biggest divergence in central bank rates since 2008

• Foreign exchange funds are headed for an annual return of around 7%, according to Bloomberg.
• That's more than double their average return over the last two decades.
• It comes as rates across the top 10 global economies are diverging the most since 2008.

Currency investors are seeing big returns this year as differences in interest rates across the top 10 global economies are at their widest since 2008.

Foreign exchange funds are looking at an annual return of around 7%, according to data from BarclayHedge cited by Bloomberg. That's more than double the average return for the past two decades.