The NZ share market is a joke. Pretty much any serious global company that started in NZ moves away from NZ without even entering our sharemarket. There are a few exceptions of course, but by and large it's a dull, depressing market and there are very few incentives to invest in businesses rather than property.
NZ's tax regime also actively discourages investment outside of NZ. Holding growth shares in US tech stocks will result in annual wealth taxes, even if you hold and never sell. No wonder property is easier and more profitable.
Last year a friend was gloating at how they purchased 5 rental properties in the South Island (with mortgages of course). Yes a degree of rental properties is required but what we're doing in NZ is way out of proportion.