The New Zealand dollar slipped from an 11-month high ahead of the Federal Reserve's monetary policy review, the first where new chair Janet Yellen will take questions from the media.
The kiwi fell to 86.05 US cents at 5pm in Wellington from 86.28 cents at 8am, though still up from 85.63 cents yesterday. The trade-weighted index rose to 80.19 from 79.87 yesterday.
The Federal Open Market Committee is expected to keep interest rates near zero and trim monthly quantitative easing by a further US$10 billion to US$55 billion when it ends its meeting on Wednesday in Washington. Traders will be looking to see Yellen's take on how the US economy is tracking after a harsh winter weighed on the world's biggest economy.
"I wouldn't be surprised if Yellen showed more caution when she comes out with the press conference," said Stuart Ive, senior client adviser at OMF in Wellington. "It's more than likely kiwi dips should still be bought against the US dollar."
The kiwi dollar rallied during the Northern Hemisphere session after Russia President Vladimir Putin quelled fears his nation would make a grab for more of Ukraine, stoking investors' appetite for risk-sensitive assets.