While the US has its own issues, the Brexit debate is getting a lot of attention here. It may not have immediate impacts on New Zealand but it does have big implications for Europe and will ultimately affect all markets, he said.
"I'm guessing the Asians don't think about it that much, but it does affect money flows around the world."
Spark New Zealand was again the heaviest traded stock today with almost 3.2 million shares changing hands, up slightly on the daily average for the past three months. It rose 0.6 per cent to $4.20.
The only other top-50 stocks to better a million shares traded were Fletcher Building and A2 Milk Co.
Fletcher Building rose 0.7 per cent from a seven-month low to $5.67. Almost 1.9 million shares changed hands, nearly 60 per cent more than average.
A2 Milk rose 0.3 per cent to $10.17. Almost 1.6 million shares were traded.
Outdoor clothing and equipment maker Kathmandu was the biggest decliner today after going ex an 11-cent final dividend. The stock fell 7.8 per cent to $2.61.
Ryman Healthcare fell 4 per cent to $11.42 on light volume.
Market operator NZX was the biggest gainer, up 2 per cent at $1.04. The company today said it signed up its first customer for its wealth technologies platform.
Meridian Energy and Pushpay Holdings each rose 1.6 per cent to $3.24 and $3.25 respectively.
Pushpay is to be added to the MSCI small cap index at the end of the month. Freightways, which is making room for Pushpay in that index, rose 0.9 per cent to $7.09, having plunged 6 per cent on Wednesday when the change was announced.
Mainfreight rose for a third day, up 0.2 per cent at $31.05, after delivering a better-than-expected 32 per cent increase in first-half profit to $55.7m on Wednesday.
Burke said Mainfreight is now a truly international business and is possibly still cheap on a comparative basis.
Precinct Properties NZ fell 0.4 per cent to $1.41 as entitlements ended to its 1.5 cent interim dividend. Property for Industry fell 0.6 per cent to $1.70 as entitlements ended to its 1.85 cent interim dividend.
Refining NZ fell 1.3 per cent to $2.34. The country's sole oil refiner said it's not expecting a material impact from tight natural gas supplies given its ability to use other fuels in its processing.