Australian vs US Stock Market

Australian vs US Stock Market

The ASX is typically highly correlated to the US stock market (Dow Jones or S&P 500) with the opening level of the ASX often determined by what the US markets did the previous night. Unfortunately for Aussie investors, the ASX, although still correlated to US markets, has underperformed the US since the global financial crisis in 2008. The chart below shows the relative performance of the ASX 200 compared to the S&P 500, with both indices normalised to a value of one at the beginning of 2008.

Source: Rivkin, Reuters

The chart shows that both markets had very similar performance during the financial crisis of 2008 and even into the beginnings of the recovery in 2009. Early in 2010, however, the lines deviate and the S&P begins to outperform the ASX. Why has this deviation occurred? The relative performance of the US and Australian economies does not provide an answer to this question. All else being equal, on average, companies in an economy with strong economic growth should perform better than companies in a weak economy. Strong stock market performance can potentially be linked to a high rate of economic growth in the country as a whole. As the most widely used estimate of economic strength, GDP growth can be used to compare the US economy with the Australian economy. Since 2008, the average annual GDP growth in Australia has been 2.55% while in the US it was a full percentage point lower at 1.55%. These numbers indicate that GDP growth cannot be used to explain the difference in stock market performance over this period.

The next possibility is that price/earnings (P/E) ratios have increased for the S&P relative to the ASX. The P/E ratio measures the share price of a company relative to its earnings. Although a little simplistic, a high P/E ratio implies that the share price is high for a given level of earnings and therefore the company is ‘expensive’. Conversely a low P/E implies a company is ‘cheap’. More importantly, a rising P/E ratio would allow stock prices to rise without a corresponding increase in earnings. If ASX and S&P companies were performing similarly well, in terms of underlying business results, a relatively higher P/E on the S&P would explain the higher index value. As it happens, the P/E ratio of the S&P at the beginning of 2008 was 16.85 and todays value is 20.06. In comparison, for the ASX 200 the 2008 and 2016 values are 15.03 and 17.22 respectively. That is a 19% increase for the S&P and a 14.6% increase for the ASX. A larger increase in the P/E ratio therefore explains some, but not all, of the outperformance of the S&P500.

Perhaps we need to keep digging to find differences in the ASX and S&P. The dividend yield gives a measure of how much capital companies are paying out in dividends rather than retaining as earnings. Specifically, the dividend payout ratio specifies what percentage of a company’s earnings are paid out as dividends. Based on the dividend yield and P/E ratios above, the payout ratio for the ASX 200 is currently over 90%! This leaves less than 10% of earnings to be reinvested in the business for growth. On the other hand, the S&P payout ratio is currently around 50%, indicating that significantly more earnings are being reinvested in the US compared to the Australia (although this doesn’t account for money used for stock buybacks). Reinvested earnings can be used to grow the company and increase future earnings and therefore it is generally not good for growth if a too high percentage of earnings is paid out as dividends. This may certainly be a contributing factor to the relative underperformance of the Australian market. In fact, the graph above does not tell the full story, because it doesn’t include the effect of dividend payments. If we include dividend payments, and compound them, the performance of two indices becomes much closer, as shown in the chart below.

Source: Rivkin, Reuters

Even accounting for dividends and higher P/E ratios, the S&P 500 has still outperformed the ASX 200. This implies that company earnings growth in the US has outpaced ASX stocks despite the overall sluggish GDP growth. There could be a few factors at play in this. The US Federal Reserve has implemented an unprecedented stimulus program, injecting hundreds of billions of dollars into the economy. A lot of this money has flowed into Wall Street and probably contributed to the earnings growth of some large US companies. On the other hand, Australian resource companies (which are a large part of our economy) have been suffering from an extended period of low commodity prices. This has put a big dent in the earnings of some of our largest companies, such as BHP Billiton and Woodside Petroleum.    

On an annualised basis, the outperformance of the S&P 500 could be as much as 4%, which makes a big difference to a portfolio when compounded over several years and highlights one of the benefits of including international markets in a stock portfolio. Investors wishing to diversify into international stocks could consider the Rivkin Global product that trades in S&P 500 stocks (as well as many others). Please contact Rivkin if you are interested.

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