OceanaGold, which owns New Zealand's largest goldmine Macraes, is a more complex story. Mining stocks are often volatile and its were one of the worst performers on the NZX last year. They've surged back with stronger earnings, cost savings, good hedging and good cashflow.
While gold prices are still subdued and returns low they have been offset by copper production at its Philippine mine at Didipio.
Meanwhile its Didipio goldmine is one of the lowest cost gold producers in the world.
Other strong stocks on the list include F&P Healthcare - always a good performer but benefiting from increasing NZ dollar returns as the exchange rate with the US drops.
Spark (formerly) Telecom seems to have convinced investors with its more marketing focused reinvention.
Others, such as Mainfreight (again, always a well-run company), tend to be good barometers of a strong domestic economy.
- Liam Dann