The Bigger Picture - August 2026

Most market commentaries explain major price moves after the fact with tidy causes that sound obvious only in hindsight. In my opinion, that’s not an intellectually honest approach in the current environment. 

Navigating complexity is increasingly the name of the investment game. That’s always been the case, but as investors’ timeframes fall and access to digital trading strategies becomes more commonplace, markets are moving faster and with less predictability.   

Markets Are Complex 

Consider what an investor would have needed to get right this year to profit from having a directionally accurate market view. 

Gold is down by a quarter from its January high, even though it was the consensus hedge against exactly the inflation and geopolitical risk that has since materialised; the hedge fell in value while the events it was meant to protect against played out. 

Brent crude is down over 20% from its highs, during an active Middle East conflict which continues to hamper flows through the Strait of Hormuz; the precise scenario that most experts expected to launch oil much higher. 

And the AI trade, the single biggest driver of global equity returns this year, became a geopolitical bargaining chip and volatility driver when Washington restricted foreign access to frontier US models. 

These contradictions are the ordinary texture of a complex system with millions of participants and reflexive feedback loops. This is why it’s more realistic to treat the market as a wide distribution of potential outcomes than a puzzle with a single solution. 

The 1.2% You Never See on a Portfolio Statement 

In the face of so much uncertainty, most investors understand the value of focusing on what they can control. 

Yet, there’s one controllable and very expensive mistake most investors continue to make, and it has nothing to do with fees: they consistently earn less than the funds they invest in.  

And not a little less. On average, investors make 1.2% p.a. less, or 15% of total fund returns, over the long term.  

The reason for this is unglamorous at best: investors reliably buy high and sell low, which lowers the returns they generate. 

Compounded over 25 years on a $500,000 portfolio, a 1.2% p.a. performance gap is the difference between $2.1 million and $1.6 million. That’s half a million dollars surrendered; not to a fund manager or the tax office, but to timing. 

There’s usually a trigger for badly timed investment decisions in the form of a sharp, fear-inducing market drawdown or broader financial challenges. 

Sophisticated investors do this too. Our emotions peak together, precisely when prices are worst. 

The fix is not more conviction or better forecasts. It’s less discretion: 

• Automate your contributions so the decision to invest is made once, not monthly. 
• Write your sell rules on a calm Sunday, in specific terms, and put a date on them. 
• Diversify structurally, across geography, currency, duration and sector, not just across a small group of outperforming tech stocks. 
• Decide in advance what would make you change your mind, so that a falling price alone can’t sway you. 

Remember: the plan you write when nothing is happening is the only plan you’ll follow when something is.  

US Equities: Expensive, and Still Compelling 

The case for maintaining structural exposure to US equities is arguably as compelling as ever, although it’s worth being precise about why since the easy version of this argument is wrong. 

The S&P 500 currently trades on a forward multiple of 20.5x against a ten-year average of 19x. That’s a slight premium which arguably raises the penalty for disappointing data.  

But the denominator is moving fast: consensus is for calendar 2026 earnings growth of 24%, with a second consecutive quarter of 20%-plus growth already in the bag. Price has outrun earnings since March, although earnings growth is proving remarkably strong. 

Participation has also broadened beyond the Magnificent Seven. Revenue growth is showing up across all eleven sectors. That said, Goldman estimates AI-infrastructure beneficiaries account for roughly half of total index earnings growth this year. A broader rally is not the same thing as a genuinely diversified one. 

Which brings us to the evolution of AI into a geopolitical pressure point, akin to the Strait of Hormuz for oil flows. When Washington briefly restricted foreign access to Anthropic’s frontier models, it demonstrated something investors had not priced in: the most important driver of the global earnings cycle sits inside a single jurisdiction, and that country has revealed its willingness to use access as leverage. 

The lesson is to check whether your AI exposure is genuinely diversified by geography and by layer of the value chain, or whether it’s a concentrated bet on America’s export policies. 

At Home: A More Delicate Balancing Act 

The Australian setup is tighter.  

Household debt is sitting at a record $3.33 trillion, or about 112% of GDP. That figure is the reason RBA rate rises hit the real economy faster and harder than the same moves almost anywhere else. 

The RBA has already raised three times this year. On 11th August it decides again, and the professional forecasting community is split over what’s coming.  

That spells risk for investors holding bank-heavy portfolios, long-duration bonds or geared property exposure. 

Investors wanting ballast against this risk might want to consider low-duration fixed interest rather than assuming the duration exposure that worked over the last three years behaves the same way over the next three.  

It’s also worth asking which parts of the domestic economy are structurally advantaged regardless of whether the RBA raises rates again. Digital infrastructure, healthcare and tourism stand out as longer-term winners.  

Sitting Tight is Usually the Optimal Strategy 

Changing your investment plan in reaction to any of these developments would probably be a mistake. Markets are noisy, and sitting tight through that noise is generally the right call. 

If you haven’t already, build your plan and guardrails now, while it's still an empowered choice rather than a disempowered reaction. 

Simon Turner 

Editor 

This commentary is general information only and does not take into account your objectives, financial situation or needs. Market levels and forecasts referenced are as at late July 2026 and are subject to change. Past performance is not a reliable indicator of future performance. Consider whether the information is appropriate for you and seek professional advice before making investment decisions.

Disclaimer: This article is prepared by Simon Turner. It is for educational purposes only. While all reasonable care has been taken by the author in the preparation of this information, the author and InvestmentMarkets (Aust) Pty. Ltd. as publisher take no responsibility for any actions taken based on information contained herein or for any errors or omissions within it. Interested parties should seek independent professional advice prior to acting on any information presented. Please note past performance is not a reliable indicator of future performance.