Exporters were among today's leaders, with A2 up 3.6 per cent to $11.16 and its key supplier Synlait Milk leading the benchmark higher, up 3.9 per cent to $10.80. Fisher & Paykel Healthcare rose 1.7 per cent to $14.79.
Still, Goodson said a weaker currency isn't one-way and given the New Zealand market's popularity with overseas investors in recent years, a depreciation in the kiwi for unhedged investors would cause "a fair degree of pain".
Earnings season remains the focal point for domestic investors, with Summerset the first major retirement village operator and developer to report.
The Wellington-based company lifted underlying earnings 27 per cent and declared an increased dividend, although the net profit fell 9 per cent as the slowing housing market produced smaller property revaluation gains. The shares fell 0.8 per cent to $7.66.
"There are some fears in the sector given house prices and turnover are starting to slow down," Goodson said.
"It's a little bit early to really come through and the company's numbers were broadly in line with market expectations."
Fonterra Shareholders' Fund units posted the biggest fall, down 3.2 per cent to $4.80, a new three-year low. Fonterra Cooperative Group lowered its farmgate payout for the 2018 season and said it probably won't pay a final dividend this year as it retains cash to bolster its balance sheet.
Freightways fell 1.9 per cent to $7.60 after yesterday reporting a small increase in annual profit, while Heartland Bank declined 1.7 per cent to $1.74 before reporting its earnings tomorrow. NZX, which also reports tomorrow, was unchanged at $1.09.
Spark New Zealand rose 0.7 per cent to $3.85 after securing broadcasting rights to the English Premier League and Manchester United TV. The country's biggest telecommunications company has staked out its claim with premium sports since it won the 2019 Rugby World Cup rights earlier this year. Sky Network Television was unchanged at $2.57.
Among blue-chip stocks, Fletcher Building gained 0.4 per cent to $6.83, Mainfreight dipped 0.1 per cent to $27.81, Air New Zealand declined 0.2 per cent to $3.325, Kiwi Property Group fell 0.7 per cent to $1.36, Meridian Energy fell 1.3 per cent to $3.125 and Auckland International Airport dropped 1.9 per cent to $6.74.
Outside the benchmark index, PGG Wrightson was unchanged at 67 cents after reporting a record profit, while lowering its dividend to reinvest earnings back into the business.
Rubicon gained 3.6 per cent to 29 cents after founding chief executive Luke Moriarty and chief financial officer Mark Taylor said they will leave the biotech company this financial year.
Pacific Edge rose 1.6 per cent to 31 cents after saying the Counties Manukau district health board will start using its Cxbladder cancer detection device from next month.