Why is gold the best portfolio hedge when equities fall?

Mar 5, 2020

It has been a strong start to 2020 for gold, with the yellow metal rising by 12.99% in AUD terms, and 4.54% in USD terms in the first two months of the year.

The increase in the price has seen an uptick in investment demand, as well as a surge in enquiries across our entire business from potential investors looking to find out information about the gold market.

There has also been a surge in enquiries from potential investors, with many looking for information on how gold has typically performed during periods of equity market weakness.

With fears over Coronavirus and a deteriorating global economy continuing to build, there appears to be growing concern that the more than 10% fall on the ASX in late February may usher in a period of higher volatility, and lower returns for equity market investors.

If that were to happen, then history would suggest that gold is likely to perform well, as it has recently, with the yellow metal having an unmatched track record of strong performance whenever equities have fallen hardest.

This is best seen in the table below, which shows the returns for gold and for equities in the worst five calendar years for Australian equity markets between 1971 and 2019.

Annual returns (%) for equites during the five worst years for equity markets 

Gold or equities






Gold or equities









None available



Gold or equities













Source: The Perth Mint

The table shows that with the exception of 1990, when it was basically flat, gold delivered exceptionally strong gains in the years when equity markets suffered their largest falls.

The figures amount to a performance differential of almost 65%, with gold delivering an average increase of almost 40%, whilst the sharemarket saw average falls of almost 25%.

Not only did gold perform well in absolute terms in these environments, but in relative terms as well, with a study from The Perth Mint based on data from 1971 to the end of 2019 highlighting the fact that the yellow metal outperformed bonds and cash during periods of heightened equity market weakness.

Gold’s diversification qualities, and the way that it can help protect a portfolio during periods of equity market volatility are relevant at all times, but particularly today, given the ongoing risks in equity markets.

What are the risks when buying gold?

The economic and geopolitical risk factors facing equity markets in 2020 and beyond are well established. Debt to GDP levels are higher than when the Global Financial Crisis (GFC) hit ten years ago, whilst interest rates are much lower, leaving less room for central banks to deploy conventional monetary policy tools to assist in the next downturn.

Beyond those factors are the warning signs in the equity market itself, including:

Markets are near all-time highs after long bull

Despite the recent volatility, equity markets like the S&P 500 are trading near their all-time highs, with a decade long bull market that some analysts are claiming is the longest on record.

Locally, the ASX pushed through the 7,000-point barrier in January, whilst the accumulation index has increased by approximately 85% from its 2007 high, and 245% from its GFC low.

These are superb returns, but they belong to the past.

Price to earnings ratio near record highs

A second warning sign for equity markets can be seen when looking at the S&P 500 cyclically adjusted price to earnings ratio (CAPE), with investors currently paying just over 34 times earnings to be owners of stock. This is a substantial increase, as during the worst of the GFC, the CAPE ratio dropped to just 15.

The current CAPE reading has only been exceeded twice in the last 120 years.

The first time was in 1929 when CAPE hit 39, while in 1999 the ratio hit 48. Suffice to say that investors who bought into US equities at those levels were not well rewarded in the decade that followed. Will this time be different?

As a brief aside, whilst it might be accurate to say there is little consumer price inflation in the world today, the rise in CAPE (seen in the above chart) highlights substantial asset price inflation in the ‘post’ GFC environment. The price investors have to pay to be an owner of stock, as measured by CAPE, has increased by more than 11.5% per annum over the last 11 years.

Price to sales ratio at all-time highs

A further warning sign for equities is the price to sales ratio for the S&P 500, which is calculated by dividing the share price of a company (or the market as a whole) by the dollar value of the sales a company generates.

As an example, if a fast food company was trading at $100 per share, and they generated $100 of hamburger sales in a year, then the price to sales ratio would be 1:1.

The S&P 500 recently hit an all-time high of 2.40. During the GFC the ratio dropped to just 0.8.

Using our fast food company analogy again, back in 2009 sharemarket investors needed to spend $80 to buy $100 worth of hamburger sales. Today those same $100 worth of hamburger sales cost investors $240.

That’s an inflation rate of approximately 18% per annum over the last 11 years.

The rise of zombie companies

In 2018, the Bank for International Settlements (BIS) released a report looking at the rise of ‘zombie’ companies that are listed on global equity markets.  Zombie companies are in effect organisations whose profits can’t meet their current debt servicing costs.

Logic would suggest that in the ultra-low interest rate environment we have been in over the last decade, there would be very few companies in this predicament. In reality, the opposite is true, with the BIS paper (which looked at 14 advanced economies) suggesting 14% of firms were zombies by the end of 2016, up from just 2% in the late 1980s.

This is not just a northern hemisphere phenomenon, with research from Coolabah Capital looking at the Australian market finding that up to 17% of companies listed on the ASX were zombies by the end of 2018, up from just 10.8% in 2010.

Whilst low rates will continue to help keep these companies afloat, one struggles to see how they can meaningfully lift investment given the apparent fragility in their financial circumstances.

Over the long-run one can expect this to depress economic growth rates, with the BIS themselves stating that; “Zombie firms are less productive and crowd out investment in and employment at more productive firms.”


While none of the above factors guarantee that a stock-market crash is imminent, or even that equity markets will perform poorly in years to come, they do suggest caution is warranted, especially given the ongoing economic risks and geopolitical tensions.

Astute investors pay attention to the warning signs financial markets give off, and right now those warning signs are significant.

Combine these risks with the low to negative real yields available in traditional defensive assets like cash and bonds, and the strategic case for including gold in an investment portfolio today remains compelling.


Past performance does not guarantee future results. The information in this article and the links provided are for general information only and should not be taken as constituting professional advice from The Perth Mint. The Perth Mint is not a financial adviser. You should consider seeking independent financial advice to check how the information in this article relates to your unique circumstances. All data, including prices, quotes, valuations and statistics included have been obtained from sources The Perth Mint deems to be reliable, but we do not guarantee their accuracy or completeness. The Perth Mint is not liable for any loss caused, whether due to negligence or otherwise, arising from the use of, or reliance on, the information provided directly or indirectly, by use of this article.