New Zealand shares dropped, led lower by A2 Milk Co and Z Energy, while Trustpower and Summerset gained.
The S&P/NZX50 Index fell 28.5 points, or 0.3 per cent, to 8,917.59. Within the index, 23 stocks rose, 19 fell and eight were unchanged. Turnover was $90.1 million.
"There's very light turnover but again our index is being led down by A2, Z, Synlait and Port of Tauranga," said Peter McIntyre, investment adviser at Craigs Investment Partners.
"A2 makes up a good chunk of the index, and if it is having a weaker day it has an impact on the index as a whole."
A2 led the index lower, down 2.4 percent to $10.75.