As you probably know, buying shares doesn’t give the money to the company (unless they are diluting shares), you are buying from someone else who is selling their shares. So investing in shares only indirectly helps the company, as it helps the share price which shows value that they can borrow against. But I guess it’s still the best way to help.

Buying shares in individual companies does increase risk, and can also get expensive having to pay a fee each purchase.

There are benefits (and downsides) to increasing your NZ allocation. If you’d like to do it, I’d suggest having a look at Simplicity’s NZ fund. It invests a range of NZ companies, but you’ll notice most of the top holdings are of infrastructure companies. There’s a page on it here, but it’s surprisingly difficult to get the list of companies since it directs you to a page that doesn’t work on mobile.

The main ones are companies like Fisher and Paykel Healthcare, Auckland Airport, Infratil, Spark, and a bunch of power companies.

I think going for a diversified NZ fund in addition to your more rounded fund is a good way to increase your NZ allocation. It’s worth noting the 5 year average return is pretty trash (2.5% vs their growth fund at 9.8%).