Is the share market overvalued, or are today’s high prices simply the new normal? In this episode, we unpack whether current valuations make sense, what’s driving them higher, and how investors should think about risk when the numbers feel stretched.
Is the Share Market Overvalued and How Do We Measure It?
To understand whether the share market is overvalued, the discussion starts with the most common valuation tool: the price-to-earnings (P/E) ratio. Put simply, the P/E ratio compares a company’s share price to how much profit it earns. For example, if a stock trades at $100 and earns $4 per share, its P/E ratio is 25 – meaning investors are paying $25 for every $1 of profit.
Right now, the S&P 500 is trading at roughly 27-29 times earnings, compared to a historical average closer to 15-16 times. On its own, a high P/E doesn’t automatically mean the market is overpriced – but compared with history, it does suggest investors are paying far more for each dollar of profit than they used to.
Looking back over the decades shows how valuations have shifted over time. In the 1970s, P/E ratios sat between 7 and 12 times. The 1980s saw 10 to 18 times, the 1990s reached 15 to 30 times during the tech bubble, and the 2010s generally ranged between 15 and 23 times. Today’s levels sit at the higher end of that historical spectrum.
Has the Share Market Been Distorted by Tech and AI?
A major reason the share market feels overvalued is the outsized impact of large technology and AI-focused companies. The so-called “Magnificent Seven” have become such a dominant part of the market that they heavily influence overall valuations.
Some of these companies are trading at 30 to 50 times earnings, meaning investors are effectively paying up to $50 for every $1 of profit. That pricing reflects huge expectations around future productivity gains from artificial intelligence – similar to the optimism seen during the late-1990s internet boom.
The challenge is that many of these future gains are already priced in. Even if the technology delivers, the open question remains: which companies actually win? History shows that market leaders don’t stay on top forever. In the 1950s, companies spent an average of 61 years near the top of the S&P 500. By the 1980s, that dropped to 30 years, and today it’s closer to 12-14 years.
At the same time, the rise of passive investing means money continues flowing into the biggest companies simply because they sit at the top of major indices – reinforcing their dominance and further pushing valuations higher.
Does Valuation Still Matter for Investors?
One debate raised in the episode is whether valuation metrics like P/E ratios still matter at all. Growth companies often argue that traditional valuation models are outdated, especially when businesses are focused on long-term dominance rather than short-term profits. Many well-known growth stocks didn’t pay dividends for years, relying instead on the promise of future scale.
However, history suggests that claiming “this time is different” can be dangerous. Markets have repeatedly shown that while prices can stay high for longer than expected, eventually expectations and reality need to align.
Timing the Market vs Staying Invested
Even if the share market is overvalued, trying to time the market carries its own risks. The episode highlights research showing that over a 20-year period, a $10,000 investment grew to $64,000 when fully invested. Miss just the 10 best days, and that same investment only grew to $29,000 – effectively wiping out around 50% of returns.
Crucially, 78% of the market’s best days occurred during bear markets, often immediately after periods of panic. This makes jumping in and out of the market extremely difficult – even if your long-term view eventually proves right.
Diversification and Playing the Long Game
Rather than trying to predict short-term market moves, the discussion comes back to fundamentals: diversification and patience. The S&P 500 currently trades at high valuations, but other regions and sectors are priced far lower. Europe sits around 13–15 times earnings, the UK 10-12, Japan 14-16, and emerging markets 11-12.
Different industries also offer varying valuations, from energy and financial services through to utilities and real estate. The point isn’t to chase a single sector, but to avoid relying too heavily on one market or one group of companies.
As one example from the episode puts it: everyone wants to get rich quickly, but the real strategy is getting rich slowly and sticking to it.
Key Takeaways
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The share market is trading well above long-term average valuations
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High P/E ratios mean investors are paying more for each dollar of profit
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Large tech and AI stocks are heavily influencing overall market pricing
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Market leaders don’t stay dominant forever
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Timing the market often leads to missed returns
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Missing just a handful of strong days can significantly reduce long-term outcomes
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Diversification across regions and sectors can help manage risk
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Long-term, consistent investing remains critical
Next Steps:
If you’re questioning whether your investment strategy still makes sense in today’s market, the team at Lighthouse Financial can help you build a diversified, goal-aligned investment plan.
If you’d like to watch more, check out these other episodes below.
For a no obligation discussion to see how we can help you on the path to wealth, please contact us.
Disclaimer:
The information in this article is general information only, is provided free of charge and does not constitute professional advice. We try to keep the information up to date. However, to the fullest extent permitted by law, we disclaim all warranties, express or implied, in relation to this article – including (without limitation) warranties as to accuracy, completeness and fitness for any particular purpose. Please seek independent advice before acting on any information in this article.
