Author: Greg Boland
For many New Zealand investors, buying shares often starts close to home. Familiar names such as Fisher & Paykel Healthcare, Auckland International Airport or the major electricity companies are a natural place to begin.
But as investing has become more accessible, increasing numbers of Kiwis are looking beyond the New Zealand market to invest in some of the world's largest and most innovative companies. Businesses such as Apple, Microsoft, NVIDIA, Amazon and Alphabet have transformed industries and become household names around the globe.
That doesn't mean every investor should rush to buy US shares. International investing offers exciting opportunities, but it also introduces new risks and considerations. Before placing your first trade, here are five things every New Zealand investor should understand.
1. Diversification matters more than finding the next winner
One of the biggest mistakes new investors make is believing they need to find the next Tesla or NVIDIA to build wealth.
Successful investing is usually much less exciting than that.
One of the oldest investing principles is not to put all your eggs in one basket. Diversification simply means spreading your investments across different companies, industries and even countries to reduce the impact if one investment performs poorly. Diversification has long been one of the most effective ways to manage investment risk.
The New Zealand sharemarket is home to many quality companies, but it represents only a small part of the global investment universe. Investors who own only New Zealand shares are heavily exposed to the local economy, interest rates, housing market and a relatively narrow range of industries. Educational material developed for New Zealand investors highlights this "home bias" and encourages investors to think beyond familiarity when building a portfolio.
Adding international investments can provide exposure to sectors that are underrepresented locally, including artificial intelligence, cloud computing, semiconductors and global consumer technology.
The objective isn't to replace New Zealand investments. It's to complement them.
2. Consider starting with an ETF instead of an individual company
Buying your first overseas share can feel daunting.
Which company should you choose? How do you compare thousands of listed businesses?
For many beginners, an exchange traded fund can provide a simpler starting point. An ETF is a single investment that can hold dozens, hundreds or even thousands of companies. Instead of relying on the success of one business, you gain exposure to an entire market or sector. For example, broad market ETFs can track major indices such as the S&P 500, giving investors exposure to many of America's largest companies through a single investment. Other ETFs focus on technology, healthcare, dividends, clean energy or global markets. ETFs are traded on stock exchanges like shares and are generally lower cost and passively managed to track an index.
Many experienced investors build what is often called a 'core and satellite' portfolio. The core consists of diversified ETFs, while individual shares are added around the edges as investors gain confidence and experience.
3. Understand that investing internationally comes with additional risks
Investing overseas isn't just about selecting good companies. There are several additional factors New Zealand investors should understand.
The first is currency. When you buy a US share, you're investing in US dollars. Even if the company's share price doesn't change, movements in the New Zealand dollar can affect the value of your investment when converted back into local currency.
Time zones also matter. US markets operate overnight for New Zealand investors, meaning major company announcements and economic news often occur while we're asleep. This timing can make international investing feel different from investing locally, although modern technology has made access to overseas markets far easier than it once was, such as 24-hour trading in US shares on the moomoo platform.
International markets can also experience greater day-to-day volatility than many new investors expect.
That's why it's important to invest with a long-term mindset rather than reacting to every headline or market swing.
4. Do your research before you buy
The easiest investment decision is often the one made after reading a social media post, but not the best. Professional investors generally start with research before deciding whether a company deserves a place in their portfolio. You should too. It can help avoid costly mistakes.
So when considering an investment, useful questions include:
· What do I know about the company?
· How does the company make money?
· Is revenue growing?
· Is it profitable?
· What are analysts expecting?
· What industry trends could affect future growth?
Rather than chasing the latest market hype, experienced investors typically follow a repeatable research process that considers company fundamentals, market themes and upcoming catalysts such as earnings announcements. Start broadly, narrowing opportunities with screeners, and identifying catalysts before entering trades.
Today, many online investing platforms include integrated research tools such as company financials, analyst ratings, earnings calendars, market news and ETF screeners. These resources can help investors make more informed decisions instead of relying solely on opinions shared online.
5. Choose a platform that helps you become a better investor
When comparing investing platforms, it's tempting to focus only on brokerage costs.
Fees matter, but they shouldn't be the only consideration.
For someone building long-term investing skills, a good platform should also make it easier to learn.
Look for features such as:
- Direct access to US markets
- Educational articles and videos
- Company research and financial data
- ETF screening tools
- Market news and earnings calendars
- Transparent pricing and foreign exchange costs
- A straightforward, easy-to-use mobile app and desktop platform
Platforms such as moomoo combine trading with educational resources, 24-hour trading of US shares and ETFs, real-time market information and research tools, allowing investors to continue learning as they build their portfolios.
Whichever platform you choose, make sure it suits your investing goals, your level of experience and the markets you intend to invest in.
The bottom line
Building wealth rarely comes from finding one perfect investment. More often, it comes from developing good habits, staying diversified and continuing to learn over time.
International investing gives New Zealand investors access to some of the world's largest companies and fastest-growing industries, but success still depends on having a plan, understanding the risks and remaining disciplined through changing market conditions.
As Warren Buffett famously said: "The stock market is a device for transferring money from the impatient to the patient."
Your first US investment doesn't need to be your biggest. It simply needs to be the beginning of a thoughtful, long-term investing journey.
