For the first time in 15 years, US retail investors put more money into international equity funds than in domestic funds as they track the shift in returns arising from the falling dollar.

More than $51bn flowed into international funds in the six months to June four times the $12.4bn the home funds attracted, according to fund tracker Lipper. This was a sharp turnround from last year's first half, when $51bn went into US funds and $35bn into international funds.