Luke Jensen October 29, 2025 - 9 min read

Navigating the AI Boom: Is it a share market bubble?

The rise of Artificial Intelligence (AI) has captured the world’s imagination and, critically, the investment market’s attention. Companies at the forefront of this technology have experienced staggering growth, leading to daily headlines and sparking a question many of our clients are asking: Is this another market bubble waiting to burst, like the ‘dot-com’ era of the late 1990s?

It’s a valid and important question. When any single sector experiences such rapid, concentrated gains, it naturally creates a sense of apprehension. This article helps you look past the hype and the fear, focusing instead on the fundamental facts and the importance of your long-term plan.

Understanding the concerns: A look at market signals

Current market conditions are prompting some economists to flag caution, mainly due to a few key signals:

  • Elevated valuations: The forward Price-to-Earnings (P/E) ratio for US shares is currently very high, reaching levels that are often seen as a warning sign and not far below the peak of the 1999-2000 tech boom.
  • Concentrated gains: A small handful of large technology companies, sometimes dubbed the “Magnificent Seven,” have accounted for a disproportionately large share of the market’s recent growth. This concentration can make the overall market vulnerable to any setback affecting these key players.
  • Hype vs. Reality: There is a concern that the market enthusiasm for AI has run ahead of the technology’s tangible benefits right now. While businesses are investing heavily, the widespread, productivity-boosting results are still emerging.

Why this time may be fundamentally different

While the signals above warrant attention, drawing a direct comparison to past bubbles overlooks some crucial differences in the fundamentals.

1. The power of profits

The most significant difference between the current AI leaders and the ‘dot-com’ companies of the late 90s is profitability.

Many companies that drove the late 90s boom had little to no profit. They were valued purely on future potential. Today’s dominant tech players, however, are generating enormous, established profits with strong year-on-year growth. They are cash-rich businesses with established market positions, giving their high valuations a much firmer foundation.

2. The productivity potential of AI

Anyone who has used AI tools can recognise the immense potential for productivity gains across almost every industry. This is not just a passing fad; it is a fundamental shift that is driving unprecedented levels of business investment in new data centres and infrastructure. Over the long term, this wave of innovation has the power to drive genuine, sustained economic growth and, consequently, boost company profits.

3. A better interest rate environment

When the dot-com bubble burst, bond yields (the rate of return on government bonds) were significantly higher than they are today. Lower bond yields make shares relatively more attractive, even with high valuations. While this is a complex economic point, it suggests the current “risk premium” offered by shares is not as extreme as it was at the peak of the 2000 boom.

Your guide: Focusing on strategy over sentiment

Whether you are in your peak earning years, a pre-retiree, or already enjoying retirement, what does this complex market picture mean for you? The answer, as always, lies in discipline and perspective.

The danger of market timing

Market corrections are a normal and necessary part of investing. They are the price we pay for the higher returns shares provide over the long term. The biggest risk to your financial plan is not the market going down, but the temptation to ‘time the market’—selling out in fear and then missing the inevitable rebound.

As we consistently advise, trying to time market peaks and troughs is incredibly difficult and often results in losing out on significant long-term gains. History shows that those who stay invested are ultimately rewarded.

Stick to your personalised plan

News headlines can create panic, but we encourage you to focus on the elements you can control: your strategy.

Your financial plan with Propel Financial Advice is not a static document; it is a dynamic roadmap specifically designed for your life stage, risk tolerance, and goals.

  • For retirees and pre-retirees: Your plan is specifically structured to manage volatility. It includes an appropriate allocation to more defensive, stable assets alongside growth assets to protect your capital. Crucially, your plan considers your liquidity needs. As we highlighted in our article, Why liquidity matters: A guide for retirees and pre-retirees, maintaining sufficient liquidity allows you to weather short-term market fluctuations without having to sell growth assets at an inopportune time.
  • For peak income earners (25-55): With a longer investment horizon, you are best placed to benefit from structural growth trends like AI. Market pullbacks can be viewed as opportunities to buy quality assets at lower prices. The key is to remain disciplined and continue with your planned contributions.

Ultimately success is driven by adopting a long-term investment strategy that aligns with your specific financial situation and having the conviction to stick with it through both the booms and the inevitable rough patches.

If you have any concerns about current market volatility or wish to discuss how your portfolio is positioned, please contact Luke at Propel Financial Advice.