"It started off when the major central banks agreed to provide additional liquidity to European banks, providing the spark for equities to rally and that flowed through into the kiwi," said Khoon Goh, head of market economics and strategy at ANZ New Zealand.
Following the central announcement "people were maybe thinking this was part of the plan, that politicians would follow it up with further policy, but the finance ministers meeting over the meeting didn't come up with anything concrete. We're left with pretty much same sit as before."
On the crosses, the kiwi recently traded at 80.07 Australian cents, up from 79.85 cents on Friday, and rose to 63.58 Japanese yen from 63.34 yen previously. It rose to 60.02 euro cents from 59.82 cents last week, and gained to 52.41 pence from 52.34 pence previously.
US economic data showed a glimmer of positivity after last week's tranche of poor manufacturing and employment numbers, with the University of Michigan Consumer Confidence Index climbing to 57.8 from 55.7, beating expectations.
One and five-year inflation expectations also rose to 3.7 per cent and 3 per cent respectively, from 3.5 per cent and 2.9 per cent previously.
The kiwi may trade between a range of 82.40 US cents and 83.43 cents, Goh said, with the bias tipped towards the downside.