28 minutes ago

There was meaningful variation in the performance of different KiwiSaver funds, the Morningstar data showed (file photo).

Bigger is not always better when it comes to KiwiSaver returns, Morningstar data shows.

Analysis of returns through to the end of December shows that some of the country's biggest KiwiSaver providers are among the poorer performers.

ANZ has 16.6 percent of the KiwiSaver market, the largest of all providers. But it was the second-poorest performer over three and five years in the conservative category and the worst over 10 years. It was the second-poorest in the balanced category over three, five and 10 years. And it was the third-poorest in growth over three years and 10 years.