At its meeting earlier this month, the Fed lowered its projected path for interest rate increases, suggesting it saw just two quarter-point increases this year, down from four forecast in December. After Yellen's speech overnight, traders are now pricing in just a 66 percent chance of a quarter point hike by the end of the year, the BNZ's Martin said.
The New Zealand dollar was the strongest performer of its peers against the US dollar overnight, Martin said. It faced resistance approaching 69 US cents, which is the top of its range since finding a base in September last year, she said.
Tonight, traders will be eyeing the release of the US ADP employment report ahead of the key US non-farm payrolls report on Friday.
In New Zealand today, February building consents data and the Westpac McDermott Miller regional economic confidence survey for March are scheduled for release. Elsewhere, Australia and China have consumer confidence reports due.
The New Zealand dollar advanced to 89.73 Australian cents from 89.23 cents yesterday, increased to 47.67 British pence from 47.40 pence, gained to 60.67 euro cents from 60.28 cents, rose to 77.31 yen from 76.62 yen and jumped to 4.4594 yuan from 4.3922 yuan.