The New Zealand dollar gained with equity markets across Asia on speculation investors who sent shares lower last week were too gloomy about the prospects for global growth.
The kiwi rose to 79.45 US cents from 79.22 cents at the start of the day and from 79.12 cents in late New York trading on Friday.
The trade-weighted index rose to 77.15 from 76.84.
Japan's Nikkei 225 Index rose 3.5 percent in afternoon trading, while Australia's S&P/ASX 200 Index gained 1 percent and New Zealand's NZX 50 rose 1 percent. Among developments to soothe investors, a European Central Bank official reportedly said it will begin purchases of covered bonds soon to support the weak regional economy.
"Equity markets are a sea of green at the moment," said Imre Speizer, senior market strategist at Westpac Banking Corp. "The risk-on vibe has persisted a bit."