The trade-weighted index, which measures the New Zealand dollar relative to the currencies of major trading partners, rose to a post-float record, prompting speculation Reserve Bank governor Graeme Wheeler will try to talk down its value when he announces an interest rate hike tomorrow.
The trade-weighted index jumped as high as 79.68 overnight, up from 79.50 yesterday and surpassing its previous high of 79.67 in April last year. It recently traded at 79.44. The New Zealand dollar slipped to 84.61 US cents at 8am in Wellington from 84.80 cents at 5pm yesterday.
The kiwi has held at elevated levels ahead of the Reserve Bank meeting tomorrow where interest rates are set to start rising on concern a strengthening economy will push up inflation. In recent days, the local currency has gained against its Australian counterpart amid concern Chinese growth and further bond defaults in China weigh on the Aussie.
A higher local currency will concern New Zealand's central bank because it makes the nation's exports less competitive. In its December forecast, the Reserve Bank projected the TWI would average 77.4 in the March quarter.
"There will be some effort to try and talk it down," said Stuart Ive, senior adviser at OMF. "It will certainly be high on their list of concerns, without a doubt, you have an exceptionally elevated currency. It's almost impossible that they will not mention it."