This is the ASX share I'd trust with my money for the next 30 years

Three decades is an enormous investment horizon, but one business stands out to me.

Thirty years is an extraordinary amount of time to own an ASX share.

Think about how much the world has changed since 1996. Entire industries have been transformed, technology has changed how we live, and some of the world's biggest companies today barely existed back then.

So, if I were choosing just one ASX share to buy today and hold until 2056, I'd want to be particularly confident about its future.

After all, a lot can happen in three decades.

Happy young woman saving money in a piggy bank.

Image source: Getty Images

What would I look for?

Warren Buffett is famous for his patient approach to investing. Rather than constantly trading shares, he has built enormous wealth by identifying great businesses and allowing them time to grow.

I think there's plenty to learn from that approach. The longer you hold a successful ASX share, the more opportunity there is for earnings growth and compounding to work in your favour.

But choosing a business to own for 30 years requires some careful thought. I would want something with a strong competitive position, proven management, and the financial resources to keep investing in its future.

I'd also want a market opportunity that could remain substantial for decades.

That's particularly important because even today's most successful businesses can eventually struggle if their products become outdated or customers' needs change.

And I wouldn't want to rely on predicting the next technological breakthrough or consumer trend.

Ideally, I'd choose an ASX share serving a genuine need, with the potential to reach far more customers over time.

Of course, I would still review its performance periodically. A long-term investment isn't a reason to ignore problems or hold a business whose prospects have deteriorated.

But there is one ASX share that I think meets these requirements particularly well.

It already has a leading position in its industry, generates substantial profits, and has an opportunity to expand its reach.

In fact, some of the statistics surrounding its potential market are difficult to comprehend.

Here's why it would be my choice.

Motley Fool contributor Grace Alvino has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended ResMed. The Motley Fool Australia has positions in and has recommended ResMed. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Blue Chip Shares

Man looking at two roads going in different directions.
Blue Chip Shares

CSL vs Telstra: Which ASX blue chip has the better outlook?

CSL and Telstra are two ASX blue chips with very different outlooks—here’s which one I’d pick as the better buy…

Read more »

Increasing stack of blue chips with a rising red arrow.
Blue Chip Shares

2 ASX blue-chip shares offering large dividend yields

These leaders offer investors significant investment income.

Read more »

Man looking down and trying to work his laptop.
Blue Chip Shares

CBA vs Wesfarmers: Which looks best for a 50-year-old investor in 2026?

Which ASX blue chip—CBA or Wesfarmers—looks best right now for 50-year-old investors?

Read more »

Stacks of coins in ascending order with a plant on top, next to a piggy bank.
Blue Chip Shares

Droneshield vs BHP shares: Which ASX stock is better for long-term wealth?

I compare Droneshield and BHP shares to decide which looks the better bet to build long-term wealth for a 40-year-old…

Read more »

CEO of a company talking to her team.
Blue Chip Shares

CSL vs BHP shares: Should you swap after CSL's new CEO appointment?

Yesterday, CSL named Deborah Waterhouse as its next CEO. Should investors now pick CSL over BHP?

Read more »

Person holding blue chips.
Blue Chip Shares

Fortescue vs Coles shares: Which ASX blue chip wins this month?

Which delivers more long-term wealth potential: high-yielding Fortescue or steady Coles? Here’s my opinion — with all the key numbers…

Read more »

flying asx share price represented by businessman flying through the air
Blue Chip Shares

Ansell vs Ampol: Which outperforming ASX 200 stock can keep climbing in 2026?

Ampol and Ansell are both flying high, but one stands out for value, yield, and momentum in 2026—see which stock…

Read more »

Person holding a blue chip.
Blue Chip Shares

2 ASX blue-chip shares offering large dividend yields

These businesses are providing a lot of passive income.

Read more »