The New Zealand dollar tumbled almost 1 US cent after Italy was forced to pay the highest yield since 1997 on government bonds, renewing fears that Europe has a way to go to contain its debt crisis.
The kiwi dollar was at 77.86 US cents just after 8am, down from 78.78 US cents at 5pm yesterday.
The Italian Treasury sold 3 billion euros of five-year bonds at a yield of 6.29 per cent, the highest since mid 1997 and a level seen as unsustainable for a nation nursing US$2.6 trillion of debt. Equity markets sold off after the sale results were announced, with the Standard & Poor's 500 Index declining 1.2 per cent.
Both Italy and Greece are installing unity governments to push through austerity measures aimed at preventing default, which could ultimately weight on global growth.
"Reality is starting to set in that we are not through the woods yet" with Europe's sovereign debt crisis, said Dan Bell senior currency strategists at HiFX.