I’ve got a mate who put off investing for years because it all felt too complicated. Then a friend explained it to him like this: buying an ETF is like grabbing a pre-made salad instead of chopping every ingredient yourself. Suddenly, it clicked.

ETFs, or exchange traded funds, have been around for decades, but they’ve surged in popularity among young Australians starting out in the share market. And yet, many of us still only vaguely understand what they actually are, how they work, or whether they’re right for us. Let’s fix that today.

Also, over the next few months, you’ll see more financial explainers popping into your inbox. If there’s a money term you want broken down, just hit reply and tell us.

A note on this edition: CommSec is the sponsor of today’s newsletter, and also provided research and insights for today's newsletter but had no editorial input on what we've written here.

Let’s get back to salads.

If you want a salad, you can either buy all the ingredients separately – lettuce, tomatoes, cucumber, dressing – or just grab one that's pre-made from the shops, right? Investing works in kind of the same way.

Let's start with the basics: a stock (or share) is a tiny piece of ownership in a company. When you buy a share in a company, you own a microscopic slice of it. If the company does well, your share price usually increases. If it struggles, your share's value declines.

You can buy individual stocks in companies (like buying an individual carrot).. Or you can buy a bunch together (like a pre-made salad)..

Here's how an ETF actually works: imagine you and 10,000 other people all put money into a giant pool. A fund manager (the kingpin salad maker) uses that pooled money to buy shares in hundreds of different companies. Then they divide ownership of that entire collection into shares, which you can trade on the share market just like normal stocks.

When you buy an ETF share, you're not buying a share in a tech or mining company (for example) directly – you're buying a slice of the fund that owns those companies. That one share gives you exposure to dozens, hundreds, or even thousands of companies at once.

According to CommSec, its most popular ETFs give investors exposure to the world’s 100 biggest tech companies or to major companies focused on making a positive impact on the planet.

Here's the practical difference that makes ETFs so powerful.

Let's say you wanted to invest in Australia's 200 largest companies. You'd need to:

With any of the ASX 200 Index ETFs today, you:

You get exposure to the same 200 companies, but the ETF does all the administrative heavy lifting for you. They buy the shares, make adjustments to the portfolio when companies enter or leave that group of 200, collect dividends, and send you a tidy summary at tax time. In exchange, they charge an annual management fee, usually between 0.03% and 0.70% of your investment (we’ll come back to that soon).

The explosion in ETF popularity isn't random – it's responding to real economic pressures facing young Australians.

A way in: Between skyrocketing cost-of-living expenses and the increasingly distant dream of home ownership, many young people are looking for ways to build wealth that don't require six-figure deposits or family connections. ETFs offer an accessible entry point. Most brokers will let you start with a few hundred dollars, and you can set up regular monthly contributions of as little as $50 or $100 to steadily build your investment.

Diversity: There's also the diversification factor - a fancy way of saying "don't put all your eggs in one basket." HHere's why that matters: if you invested $1,000 in just one company and that company goes bust, you might lose your entire $1,000. But if you split that $1,000 across 200 companies and one goes bankrupt, you only lose about $5. It would take all 200 companies collapsing for you to lose everything, which is far less likely.

But here's where ETFs get more complicated than the salad metaphor suggests.

Diversity, but not always enough: If you invest in an ETF focused on a particular sector (like tech, for example), you're diversified within that sector – in tech, you might own slices of Google, Apple, Microsoft, and dozens of others. But if the entire tech sector struggles, your whole investment feels it. It's like having a salad made entirely of different types of lettuce. You've got variety, but if there's an E. coli outbreak in lettuce, you're still in trouble.

Currency risks: Then there's currency risk. If you buy an ETF that invests in American companies, you're also accidentally making a bet on the Australian dollar. Let's say the U.S. companies grow by 10%, but the Australian dollar strengthens – you might only see 7% growth in AUD terms. You can buy currency-hedged ETFs that protect against this, but they come with higher fees.

The fees: And finally, watch the fees too. While most index ETFs charge under 0.30% annually, some charge 0.80% or more. That difference compounds over time, and you should always check the management fee before buying.

What ETFs really represent is the democratisation of investment strategies once available only to the wealthy. A 24-year-old with $500 can now access the same diversified global portfolio that would have required millions and a team of advisors 30 years ago.

But easier access doesn't mean you will always make the right choices. The sheer number of ETFs available – over 360 on the ASX alone – means you can still make bad decisions. ETFs are tools, not solutions. They're exceptionally useful for building diversified portfolios, but they don't eliminate the need to think about your financial goals, time horizon, or risk tolerance.

As ASIC and Moneysmart emphasise: read the Product Disclosure Statement before investing. If you're unsure whether ETFs suit where you’re at, consider getting financial advice. The goal is to use ETFs thoughtfully, rather than treating them as the endpoint of your financial literacy journey.

So there you have it: a welcome to the pre-made salad of investing. ETFs won't solve all financial challenges, but they've removed many of the barriers that once made diversified investing feel impossible for young Australians. Sure, you don’t make friends with salad, but you might just set yourself up for a more secure financial future!

Start investing with just $50

Getting started with investing doesn’t have to be complicated…or expensive. With CommSec Pocket, you can start building your portfolio with $50!

Browse, trade and manage ETFs and shares listed on the ASX, all directly in the CommBank app. Choose themed ETFs that match your interests, track your investments alongside your banking, and get access to tools and education to help you grow.

^{Consider the T&Cs and fees and charges at commsec.com.au and the PDS for each ETF prior to making an investment decision. Trading and investing involves risk, including potential loss of your investment. The value of your investment may go down as well as up.}