Another analysis from XE:
"Aussie dollar payments are now the most cost effective since late March. Weights for the Down Under dollar emerged this week in a noticeable rise in U.S. Treasury yields, which sapped some of Australia’s favorable interest rate differentials, deterioration in Australian confidence surveys on businesses and consumers, and signs of weak demand from China as their imports contracted. The high-yielding Aussie would be among the world’s most vulnerable currencies to a sustained rise in U.S. Treasury yields which would reduce the greenback’s allure to be exploited as a funding currency for socalled carry trades. AUDUSD hit its low watermark against the greenback in 2014 in late January below $0.8700. More of a hawkish message from the Fed next week that increases the likelihood of a rate hike before mid-2015 would risk an accelerated fall for the Aussie."