Over the weekend, Switzerland voted in a referendum that would that would have required the Swiss National Bank to hold at least 20 percent of its assets in bullion. The spot price of gold has dropped 7.8 percent over the past month, and is trading near a three-year low.
OceanaGold was the worst performer on the benchmark index dropping 17 percent to $2.20.
"OceanaGold is an extremely volatile stock," Williamson said. "It does fluctuate very much in line with what is happening in that international gold price."
Heartland New Zealand, which operates the bank of the same name, led the benchmark index higher advancing 3.6 percent to $1.14.
Chorus, the regulated telecommunications infrastructure network operator and builder, climbed 3.6 to $2.14 ahead of the Commerce Commission's draft decision on the pricing of its copper lines, which the market will be watching closely, Williamson said. Last year the antitrust regulator moved to restrict how much the company could charge for the use of its copper lines, which Chorus says has left a $1 billion hole in funding for the roll out of the nation's ultrafast broadband network.
Spark New Zealand, formerly Telecom Corp, rose 2 percent to $3.12. Fletcher Building, the construction and building supplies company, increased 0.1 percent to $8.20. Ryman Healthcare declined 0.5 percent to $7.97.
Outside the benchmark index, Hellaby Holdings climbed 4.6 percent to $3.20 after the diversified investment firm lifted its dividend payout policy to 75 percent from 50 percent of profit after recording strong cash flow and being told by investors that they want more yield.
Finzsoft Solutions jumped 41 percent to a record close of $3.98 after the financial software developer reported a profitable first half of $2.02 million on Friday, and said its board is considering paying an interim dividend for the first time in four years.
Inventory Technologies, the healthcare technology developer, will join the NZX via a reverse listing using the shell of NZF Group, the listed financial services company blocked from liquidating earlier this year by its major noteholder. NZF last traded in December last year at 1 cent, valuing the firm at $1.1 million.
On the New Zealand Alternative Index, Enprise Group, the software firm, climbed 72 percent to 55 cents in its debut via a compliance listing on the small cap market.