"It's a bit of profit-taking," said Mark Lister, head of private wealth research at Craig's Investment Partners. "It's been an outstandingly strong month for the local market. It's been a very good month for shares pretty much everywhere."
Australia New Zealand Banking Group led the benchmark index lower, down 5.5 per cent to $28.74.
Xero advanced 3.2 per cent to $15.99. The cloud-based accounting software developer slowed its cash burn in the September quarter as customer receipts rose at a faster pace than its wage costs.
TrustPower rose 1.7 per cent to $7.80 after the utility announced flat earnings for the first half of the year on an underlying profit after tax basis, reporting a 1 per cent uplift on the same period last year at $68.3 million.
Spark New Zealand rose 0.9 per cent to $3.36. The telecommunications operator has pulled a proposal to boost directors' fees by 5 per cent, after negative feedback from shareholders. NZX was unchanged at 96 cents. The stock exchange operator lifted revenue 13 per cent in the third quarter, to $18.6 million.
A2 Milk Co was the best performer on the benchmark index, up 4.1 per cent to 76 cents.
Outside the benchmark index, Briscoe Group rose 3.2 per cent to $2.89. The retailer, whose hostile takeover offer for Kathmandu Holdings was spurned earlier this year, lifted third-quarter sales 7.1 per cent to $115.9 million, and expects a seventh year of annual profit growth.