NZ dollars have been trading at around $US1,400 (£800) for almost two weeks, according to the NZ dollar exchange rate.
The NZ dollar is currently trading at about NZ$1,440, while New Zealand has a trade surplus with the US of $US6.2 billion.
In the past week, the NZ Dollar has traded up to around $1,600 in New Zealand.
That is more than double the value of the currency in the US.
New Zealand dollar trading is up by more than 50 per cent in value since the start of the week, according of the New Zealand dollar exchange rates website, NZDex.co.nz.
It is up more than 500 per cent over the past 12 months.
Since the end of last week, New Zealand’s exchange rate has gone up by about 40 per cent.
While there is still a lot of uncertainty surrounding the currency, the dollar has been moving in the right direction.
Economist James Grant, from the Institute for Economic Affairs, said New Zealanders were being helped by the US recovery.
“In terms of the economic outlook, the big picture is, that the US economy is doing really well and it’s being fuelled by the energy sector and mining investment, so people are feeling a bit better about their finances and they’re seeing the dollar rise,” he said.
“We’re seeing that as well in New York and in other major markets.”
The US dollar has surged since the election of Donald Trump, who promised to revive the US trade deficit with China.
But the economy has been a mixed bag for New Zealand, with exports up for the year.
According to the New York Times, exports in the first half of the year were up by almost 9 per cent, and imports down by nearly 1 per cent from a year earlier.
This week, trade figures were announced that showed that New Zealand exported more goods to the US than any other country.
On Thursday, the New Zealander’s team won their first Olympic gold medal in Rio de Janeiro.
The currency, which has been in a slump for the past three months, has gained by more $US300 since the end on Friday, with the NZD now trading at just over NZ$US1.10 per NZD.