What has driven stock market returns and what could drive them in the future?
Increasing valuations have been the main driver of stock market returns since Covid-19, but when we look over the past five years, we find a different set of drivers.
Since the outbreak of Covid-19, markets have climbed a wall of worry, despite cuts to corporate earnings, forecasts and dividends.
Increasing valuations have been the main engine of returns in all markets so far this year but looking back over the past five years, we find a different set of drivers.
US equity market performance driven by earnings growth
The chart below breaks down local currency returns into their key components up until 30 June 2020:
- Income (dark blue bar) – dividends
- Earnings (light blue bar) – how fast have companies grown their earnings?
- Valuations (green bar) – how has the price/earnings multiple changed? Does the market now value companies more or less, for a given level of earnings?
The sum of these components equals the annualised total return of the stock market, which is shown with a red diamond.
There are several features that stand out:
- US equities have generated the highest earnings growth of all markets shown, which investors have rewarded with higher valuations. In this sense, the US had the best fundamental underpinning over the last five years.
- Emerging market equities generated the second highest total return (in local currency terms), but almost half of this came from just rising valuations while earnings growth has been next to nothing. The collapse in commodity prices and global trade are partly to blame.
- UK and European markets have been driven by a combination of modest earnings growth and dividends. Yet, the market has failed to reflect these fundamentals in valuations, which have collapsed. Brexit fears, US-China trade frictions and the pandemic have all contributed to this decline over the past five years.
- Although the US is not immune to any of these headwinds, its lower sensitivity to global trade and concentration of tech companies has meant that it has not been materially affected.
- Japanese markets achieved the lowest return. Earnings growth has been meagre while valuations have fallen against the backdrop of a sluggish economy.
Don’t forget the contribution of currency returns
When investing in overseas markets, investors take on exposure to foreign currency movements. This can add to or detract from portfolio returns. Although this is excluded from the above analysis, it can sometimes have a material impact on equity investments abroad.
For example, over the past five years, a weakening pound lowered UK equity returns for US dollar investors by 5% a year. By the same token, however, it lifted US equity returns by 5% for sterling investors.
Similarly, a strengthening dollar lowered emerging market equity returns by 2% for US dollar investors, while boosting US equity returns by 2% for emerging market investors.
Currency returns are a zero-sum game. Investors who wish to avoid such uncertainty can hedge their foreign currency holdings at a cost that is known in advance.
Discover more:
Read: Sustainability: six ways the corporate world will have to change
Learn: Move over, US: time for a new stock market leader?
Watch: Why do markets rise when economies slump?
Rebalancing of return drivers may be on the horizon
Looking ahead, previous one-time boosts to US earnings such as corporate tax cuts are unlikely to reoccur. In fact, we may even see this policy reversed if Joe Biden, the Democratic presidential nominee, gets elected to office in November. Without this underlying earnings tailwind, US equity valuations are vulnerable to a correction.
Emerging markets also appear to be on shaky ground, as valuations have been doing most of the heavy lifting for returns. On the other hand, countries such as China, Taiwan and South Korea, which represent roughly 60% of the emerging markets index, have largely reopened their economies with minimal disruption, following several months of stringent lockdown measures. If this trend holds, a rebound in earnings could be on the cards.
Dividends have provided a solid base for UK and European equity returns, which have been supported by earnings growth. However, the global recession has forced many companies to drastically cut dividends by at least 20% or more, while analysts have cut long-term earnings forecasts. Although this has removed a key layer of support for future returns, much of this is already reflected in current valuations, which have room to recover.
As for Japan, analysts are sanguine about corporate profits over the coming years, as expectations of a swift economic recovery have surged. For example, over the past month, the forecast for long-term earnings growth has almost tripled from roughly 4% to 11% a year. If investors have conviction in this profit recovery, the potential for positive contributions from all factors remains possible.
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