The New Zealand dollar climbed above 85 US cents and reached the highest level against the Australian dollar since October 2009 as improving risk sentiment and the nation's economic prospects drive demand for the kiwi.
The kiwi dollar recently traded at 84.90 US cents, having climbed as high as 85.62 cents overnight, from 85.23 cents in Asia yesterday. The trade-weighted index fell to 78.60 from 78.82.
US stocks have gained for five straight days, helped by better-than-expected corporate earnings and economic data that beat estimates. US Labor Department figures showed applications for jobless benefits fell more than expected last week, while in the UK, gross domestic product rose at a faster-than-expected 0.3 per cent clip in the first quarter.
"The kiwi continues to be one of the best-performing currencies globally," said Dan Bell, currency strategist at HiFX. "Risk sentiment continues to remain upbeat."
The New Zealand dollar may trade in a range of 84.50 US cents to 85.50 cents today, Bell said.