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History says US market outperformance versus Australia will turn

Much has been written about the ‘exceptional’ performance of the US stock market versus the Australian index. However, the reality is not in line with the perception.

Similar to the All Ordinaries Accumulation Index (AOAI), the Dow Jones Industrial Average (DJIA) comprises a vast array of sectors and subsectors. In recent times, the US Technology sector – as represented by the NASDAQ Composite (NASDAQ) – has outshone and outperformed all other indices by a substantial amount. The ‘Magnificent 7’ have certainly experienced a period of ‘exceptionalism’. This has led to the NASDAQ notably outperforming even its equivalent ASX Technology Index (XIJ), especially since Q3 of this year when the indices diverged considerably. The chart below shows this, with the green line representing the Nasdaq, the white line the ASX Technology Index, while the blue and red lines are moving averages around XIJ. 


Source: IRESS

However, NASDAQ is not the US market. The NASDAQ does not represent the US economy or the experience of investors in that economy. It is a subset in the same way that the XIJ is a subset of the Australian market. To compare the NASDAQ to the AOAI, would be akin to comparing the DJIA to the Australian Resources Sector during one of its many boom cycles.

Rather, if we compare markets as a whole, the picture is rather different.


Source: Katana Asset Management Analysis

In the prior chart, the red bars represent the average per annum return for the Dow Jones Industrial average (including dividends) broken up by decades. The blue bars represent the same data for the Australian market.

The first lesson to draw from this graph, is that over the very long term, Australian equities have actually outperformed the US market, and with substantially less volatility.

In terms of performance, the compound average annual return for the Australian market has been 10.15% over the past 100 years. For the DJIA, the comparable figure is 7.85%. This is quite different to the common perception.

And these returns have been achieved with lower average volatility. For example, the average per annum return for the AOAI over a decade has never been negative, whereas during the depression years, the US market averaged -4.97% per annum (even with the benefit of dividends). Similarly, in the decade ending 1975, the US market returned an average of 1.48% per annum, whereas the Australian index averaged 7.91% per annum.

As a final point on this first lesson, it is also pertinent to remember that this data does not include franking credits. Our analysis suggests that since franking credits were introduced in 1987, this has averaged approximately 1.3% per annum.

The second lesson to be drawn from this data is that market strength runs in cycles. In the three decades ending 1965, 1975 and 1985, the ASX outperformed the US market. In the decades ending 1975 and 1985, this out-performance was immense. Of course, more recently in the decades ending 2015 and 2025, the US market has been the stronger performer. And this can lead to a skewed view of the world. But cycles of performance are not measured in weeks or months, but rather years and decades.

This really bores out the third lesson: the ASX has had a period of quite significant under-performance in the past 2 decades. Especially in the decade ending 2015. In fact, if we strip out dividends, capital growth for this decade was a miserly 1.18% per annum. This is a long way short of the 6%+ pa capital growth we would normally expect to experience. Again, this can lead to a distorted perception that the glory days for the ASX are over. However, investors who take the time to understand history will realise that this is part of a much larger but repetitive cycle.

This leads to the fourth and final lesson: history supports the view that the ASX will have a period of comparatively stronger performance in the coming years. Even though we may struggle to see the drivers as we sit here today, history tells us that they will emerge. Most recently, the National Bank of Canada tipped Australian equities as having amongst the best prospects on a 10- and 30-year perspective. And it’s not a fringe view. It’s shared by a group of global asset allocators collectively managing more than $27 trillion, including Vanguard, State Street, and MFS.

Looking forward, it may be hard to see what might drive the next wave of ASX out-performance, but history is a good guide and should not be dismissed. At Katana, we have identified some areas that make us cautiously optimistic:

  1. Destination of Desire (Immigration) - the quality of living in Australia is highly attractive from a global perspective. In 2024, Australia ranked number #5 globally for the net-inflow of millionaires. Skilled and affluent migrants have an enormous and direct impact on the flow of capital, consumption and taxes.
  2. Resources Boom - Australia remains the second-largest producer of natural resources globally. LNG, lithium and critical minerals are growing in importance, supplementing long term stalwarts in iron ore, coal and gold.
  3. Tourism - some European countries (such as Spain) are tapped out and looking at limiting tourist visas. Australia is particularly well placed to grow tourism, especially in light of our proximity to the massive emerging middle classes in China and India.
  4. Superannuation System and Financial - Australia’s superannuation pool remains the 4th largest globally, which when combined with strong corporate governance, provides the critical mass for a strong yet stable regional financial hub.
  5. Agriculture - the global middle-class is growing substantially, requiring higher rates of protein per capita. Australia has abundant and clean land, in good proximity to these emerging demand centres.

And of course there are many other reasons to be optimistic, including the international student industry, our recognised global expertise in health and a growing entrepreneurial DNA which has spawned a modest but not insignificant number of leading technology companies. But whether or not it is these factors that ultimately drive comparative outperformance, what many decades of data indicate, is that it will come.

Summary

  1. Australian Equities have outperformed the US over the long term (plus franking credits), and with substantially less volatility
  2. Market returns run in cycles
  3. Australia has had a period of underperformance in the past 2 decades
  4. There are reasons to be optimistic that this will revert at some point in the future.

 

Romano Sala Tenna is Portfolio Manager at Katana Asset Management. This article is general information and does not consider the circumstances of any individual. Any person considering acting on information in this article should take financial advice. Past performance is not a guarantee of future performance. Stock market returns are volatile, especially over the short term.

 

Notes on statistical calculations

  1. Compound annualised return is the most representative measure. It is calculated by compounding each annual return for the decade to arrive at a true compound result. Then the amount is ‘reverse compounded’ to arrive at an annualised figure using the formula (1+compound total)^(1/10)-1.
  2. The annualised return in (1) is lower than a linear statistical average annual return for the decade but represents the true figure allowing for the vagaries of statistics. For example, a 50% increase followed by a 50% decline arrives at a linear average of 0%. However, in compound terms, a 50% rise followed by a 50% fall is a net fall of 25% from the original index starting point. Reverse compounded, this arrives at a return of -13.4% pa (((1-25%)^(1/2))-1).
  3. The All Ordinaries Accumulation index commenced in 1979, from which time accurate dividend data is available. Prior to this, only estimates were available. The average dividend yield during this 46-year period was 4.51%. This has been assumed for the earlier years when data was not available.
  4. Similarly, the average dividend yield since records commenced in the DJIA is 2.71%. This has been applied to earlier years to calculate an approximation for the DJIA accumulation index.
  5. The S&P 500 is a more complete representation of the US market. However, despite recent variations in performance, over the past 100 years, the 2 indices have performed largely in line.

 

  •   1 January 2026
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10 Comments
Barry
January 03, 2026

Exactly. If your investment strategy relies on hope, then you are in trouble.

Having hope is not an investing edge. Hope is not a valid strategy.

2
Steve
January 01, 2026

Capital growth a miserly 1.8% per annum. Big old banks and miners with a penchant for wasting capital top our sharemarket - the meagre performance is not surprising. Throw in a government committed to expensive and in all likelihood unreliable energy and I can see some big players (eg aluminium refiners and anyone else who needs globally competitive energy) leaving our shores and not being replaced. You may as well predict Brittania will rule the waves again - just because we had a good economy in the past by no means ensures it will stay that way, with Labor/Greens in charge exactly the opposite is on the cards.

7
Paul
January 04, 2026

Too late to invest once the drivers are in place . Eg did you buy the U.S in 2010/11… probably not .

2
Henry
January 01, 2026

"growing entrepreneurial DNA" haha good one

6
CC
January 01, 2026

Maybe, but there are reasons why people could argue that Australia is heading for a prolonged economic downturn and decline in living standards.

5
Steve
January 01, 2026

What about currency? 100 years ago 1 USD bought 0.21 Aussie pounds (0.42 dollars equivalent). Today 1 USD buys about $1.5 AUD. So investing the same amount of money in both markets would not have led to similar outcomes based on indexes; 1 USD equivalent invested in the US in 1925 would have cost 42 aussie cents (equivalent) and would now be worth 150 aussie cents. Then factor in the actual index growth and its not close. Relative economic performance not only influences indexes, but currencies as well and its clear the US economy has well outperformed Australia on that basis. If we see iron ore fall off as China sources more from Africa, watch the AUD fall even further (we haven't got much left to replace it with - coal& gas are tenuous). Just how will we pay for those lovely EV's (and medical imaging devices, and smart phones etc etc).

5
Mark
January 01, 2026

I’m not feeling a high growth future for Australia. Where is the value added real driver of wealth creation and productivity gain. Our history of good performance of ASX, despite a meagre record of value added export industries, shows why we were the “lucky” country. Clearly, I could be wrong, but I am very pessimistic about Australia’s economic future and have structured 80% of my investments in overseas markets where I see many growth opportunities.

4
Paul
January 02, 2026

That’s the point of the article consider what you can’t see

3
Joe
January 11, 2026

COPILOT response
Below is a clear, structured review of the author’s argument, an evaluation of its strengths and weaknesses, and a deeper look at whether the next 20–30 years might diverge from historical patterns because of AI, healthcare innovation, and robotics—areas where the US has a structural advantage over Australia.
1. Reviewing the Author’s Premise
Romano Sala Tenna’s core argument is:
A. Over very long periods, Australian equities have outperformed US equities
o He cites 100 year compound returns: Australia ~10.15% vs US (DJIA) ~7.85%
• He notes that this excludes franking credits, which would widen the gap.
B. Market leadership runs in long cycles
• ASX outperformed in multiple decades (ending 1965, 1975, 1985).
• US outperformed in the decades ending 2015 and 2025.
• Therefore, the recent US dominance is not unprecedented.
C. The ASX has underperformed for ~20 years
• Especially in the decade ending 2015, where capital growth was extremely low.
• This may create a distorted perception that the ASX is “broken.”
D. History suggests mean reversion
• Because cycles turn, the ASX is “due” for a period of relative outperformance.
E. Australia has structural strengths
• Immigration of high net worth individuals; Resources and critical minerals; Tourism; Superannuation system; Agriculture; Plus: education, health expertise, and a growing tech sector
2. Evaluating the Merit of the Argument
There is real merit in several parts of the author’s thesis—but also important limitations.
Strengths of the Argument
1. Long-term ASX outperformance is factually correct
Australia’s equity market has historically delivered:
• Higher dividends; Higher franking-credit enhanced returns; Lower volatility; Strong population growth; Strong resource cycles
This is well documented in academic literature.
2. Cycles absolutely exist
Market leadership rotates:
• US vs Europe; Value vs growth; Commodities vs tech; Emerging markets vs developed markets
The author is right that 10–20 year cycles are normal.
3. Australia’s structural advantages are real
• A massive superannuation pool creates a stable domestic bid for equities.
• Australia is resource-rich in a world hungry for energy transition metals.
• Immigration and population growth support long-term GDP.
These are legitimate tailwinds.
3. Weaknesses / Blind Spots in the Argument
This is where the analysis becomes more interesting.
1. The author assumes the future will resemble the past
This is the biggest flaw.
Historical outperformance of the ASX was driven by:
• A commodity heavy economy during commodity heavy global cycles
• A high-dividend culture
• Strong population growth
• A banking oligopoly that delivered stable returns
• A world where technology was not the dominant driver of global GDP
But the next 20–30 years may not look like the past 100.
2. The US economy today is structurally different from the past
The US is now:
• The global leader in AI; The global leader in semiconductors; The global leader in biotech; The global leader in robotics and automation
• The global leader in cloud computing; The global leader in software; The global leader in venture capital; The global leader in university R&D output
These sectors have network effects, winner take most dynamics, and global scalability—unlike mining, banking, or agriculture.
3. Australia’s market composition is a major constraint
The ASX is: ~30% banks, ~25% resources & ~2–3% technology
The US market is: ~30% technology, ~15% healthcare, ~10% communications (tech-adjacent), ~5% industrial automation & ~5% biotech
If the next 20–30 years are dominated by: AI, Robotics, Automation, Biotech, Cloud, Semiconductors …then the US is structurally positioned to outperform.
4. Australia’s innovation ecosystem is far smaller
• Lower R&D spending as % of GDP; Smaller venture capital markets; Fewer globally scaled tech firms; Smaller domestic market
• Less deep capital markets; Lower density of research universities; Fewer patents per capita
This matters in a world where intangible capital (software, IP, algorithms, data) drives returns.
5. Commodity cycles may not be enough
Yes, Australia benefits from: Lithium, Iron ore, LNG, Critical minerals
But: China’s growth is slowing; Commodity cycles are volatile; Value sectors rarely outperform growth sectors over long periods; Resources are not scalable in the same way software is
4. Could the Next 20–30 Years Be Different?
This is the key question you asked.
Short answer: Yes. The next 20–30 years could diverge sharply from the past century—and the US may structurally outperform Australia.
Here’s why.
Why AI, Healthcare, and Robotics Change the Equation
A. AI is a scale technology
AI rewards: Large datasets; Large compute clusters; Large R&D budgets; Large talent pools; Large venture ecosystems
The US dominates all of these. Australia does not.
B. Healthcare and biotech are becoming the next mega sectors
The US leads in: Gene editing; mRNA platforms; Cancer immunotherapy; Longevity research; Medical robotics; AI driven drug discovery
Australia has pockets of excellence, but not the scale.
C. Robotics and automation will reshape manufacturing
The US, Japan, South Korea, and Germany are the leaders. Australia is not a manufacturing powerhouse.
D. Intangible capital is replacing tangible capital
The US economy is built on: Software; IP; Algorithms; Cloud infrastructure; Data networks
Australia’s economy is built on: Dirt (resources); Banks; Property; Services
These sectors do not compound at the same rate.
5. So Will the ASX Outperform Again?
It might—but for different reasons than the author suggests.
Reasons ASX could outperform:
• A massive resources boom driven by energy transition; Population growth outpacing other developed nations; Strong dividend yields
• A weaker AUD boosting export earnings; A global shortage of critical minerals; A rebound in financials if rates stabilise
Reasons ASX may not outperform:
• The US continues to dominate AI, biotech, and robotics; The US captures the majority of global productivity gains; Australia’s tech sector remains small
• Commodity cycles become less dominant; Capital flows increasingly favour innovation-heavy markets; The US continues attracting global talent at scale
6. My Overall Assessment
The author’s argument is historically sound but forward-looking weak.
He is right that:
• The ASX has outperformed over 100 years; Cycles exist; The ASX is due for a rebound; Australia has structural strengths
But he underestimates:
• The structural shift toward AI-driven economies; The dominance of US innovation ecosystems
• The compounding power of intangible capital; The possibility that the next 20–30 years will not resemble the past 100
My view:
If the next 20–30 years are dominated by AI, robotics, biotech, and automation, the US is structurally positioned to outperform Australia—possibly by a wide margin.
Australia will still do well, but its market composition makes it unlikely to lead in a world where technology, not commodities, drives global GDP growth.
Joe's view: Everyone says ‘this time is different’—which is usually code for ‘I haven’t read a history book.’ But the real irony is that share prices are set on forward earnings, not backward wisdom… so who knows, maybe this is the one time in 5,000 years of human markets where the pattern finally breaks.

 

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