Australia's S&P/ASX 200 index was down 0.6 percent in afternoon trading.
Shane Solly, a portfolio manager at Harbour Asset Management, said New Zealand's market held up well, with the local economy still in reasonably good health.
"There's a little bit of volatility at a high level and companies reporting here which is taking people's attention," he said. "At an overarching level investors are still pretty wary about slowing activity and extended tariff discussion."
Tourism Holdings led the market lower on smaller than usual volumes, falling 3.4 per cent to $4.82, the lowest close in 12 months. Pushpay dropped 3.1 per cent to $3.15, the lowest close since November last year.
Solly said Tourism Holdings has been unwinding its gains as investors question the future of its US business, while Pushpay is still under pressure from its recent earnings report.
Fletcher Building declined 2.1 per cent to seven-month low $5.55 on a third of the average trading. Tomorrow's AGM will be the first for chief executive Ross Taylor and chair Bruce Hassall.
A2 Milk was the most traded stock with 1.4 million shares changing hands. It rose 3 per cent to $10.47 ahead of tomorrow's annual meeting, and Solly said investors expect the milk marketing firm's trading update to show double-digit revenue growth.
Among other companies with more than a million shares changing hands, Spark New Zealand declined 1.8 per cent to $4.125 and Goodman Property Trust was unchanged at $1.515.
Kiwi Property Group fell 1.1 per cent to $1.345 after reporting a small decline in first-half underlying earnings after asset sales provided a smaller income stream. Investore Property decreased 0.7 per cent to $1.50 after distributable earnings edged higher.
Outside the benchmark index, Metro Performance Glass plunged 24 per cent to a record 64 cents after acknowledging a new entrant to the local market was likely to emerge in the next 18 months. Solly said the new rival will be a significant change for the company.
Sanford fell 2.1 per cent to $7.05 after agreeing to sell its Tauranga-based fishing business for an undisclosed sum. Separately, First NZ Capital affirmed its 'neutral' rating on the stock while cutting the target price 11 per cent to $7.39.
Heartland Group slipped 0.7 per cent to $1.51 after lifting first-quarter profit 8.7 per cent on growth at its reverse mortgage business and in small business and auto lending.
