The New Zealand dollar gained after the Chinese central bank added more liquidity to Asia's largest economy in a bid to boost growth, stoking optimism about the prospects for the nation's largest trading partner.
The kiwi advanced to 76.94 US cents at 8am in Wellington, from 76.80 cents at the New York close and 76.59 cents at 5pm in Wellington on Friday.
The trade-weighted index rose to 80.06 from 79.80 on Friday.
The People's Bank of China yesterday cut the reserve requirement ratio for all banks by 100 basis points from today, allowing banks to reinvest or lend more money.
It made larger reductions for specialist banks loaning in the agricultural or small business sector.