The New Zealand dollar declined as signs of weaker European economies turned investor attention to a revival in the US, increasing demand for the greenback.
The kiwi slipped to 78.33 US cents at 8am in Wellington, from 78.98 cents at 5pm yesterday. The trade-weighted index declined to 76.35 from 76.68 yesterday.
The dollar index, which measures the greenback against a basket of currencies, jumped overnight following a positive start to the US quarterly earnings season with companies such as Citigroup, JP Morgan and Johnson & Johnson beating expectations.
Meanwhile, European economic news continued to disappoint, with the German government downgrading its forecast for economic growth in the euro-zone's largest economy. The key ZEW survey of German investor sentiment slipped below the zero mark for the first time in three years, euro-zone industrial production declined and UK inflation data printed weaker than expected.
"There was a positive start to reporting season in the US," said Stuart Ive, senior dealer, foreign exchange, at OMF. "The market at the moment is very much caught between a relatively robust US economy, the confusion surrounding what the US is going to do with their interest rates, and then the whole global growth story as well. There was a big rebound in the US dollar overnight, especially against the euro."