Standard & Poor's 500 Index: perhaps the most important stock market index in the United States. It is based on the market capitalization of 500 large companies that own shares listed on the NYSE or NASDAQ stock exchanges.
Barron's Gold Mining Index: shows the price history of the main gold mining companies by market capitalization.
Adjusted PER or Shiller PE Ratio: cyclically adjusted price to earnings, which is one of the stock valuation measures (against the S&P 500 index) most used by investors. When this ratio is very high, it means that the ratio of the price an investor pays on the stock market to the earnings it offers cyclically is very high, and, therefore, this investment could offer a low or even negative return in subsequent years. But when the ratio is low it means precisely the opposite.
In the following chart, we can see how the American stock exchange reacts to the behaviour of gold mining companies (stock market divided by gold mining companies), against the stock market valuation. The correlation between both, over a period of 90 years (from 1927 to 2018), is very high (specifically, the correlation coefficient is approximately 0.8).
At times when the American stock exchange was "expensive",e., the price to earnings paid was very high, as at the end of the 1920s, during the 1960s and at the start of 2000, what happened in the years that followed was that the revaluation of the group of gold mining companies was respectively 19 (from 1929 to 1935), 17 (from 1960 to 1980) and 8 (from 2000 to 2010) times higher than the stock market itself (S&P 500 index).
Conversely, at times when the American stock exchange was "cheap", i.e., the price to earnings paid was very low, as at the end of the 1930s, at the start of the 1980s and following the financial crisis in the USA from 2008-2009, what happened in the years that followed was that the revaluation of the stock market was respectively 6 (1934 to 1960), 63 (1980 to 2000) and 7 (2000 to 2015) times higher than that of the group of gold mining companies.
Therefore, as investors, we may conclude that a long-term investor who believes that the stock market could be structurally cheaper in the coming years, could invest part of its portfolio in gold mining companies to obtain a revaluation much higher than that of the stock market in the long term, provided history repeats itself.
Please do not hesitate to contact your manager if you need any other additional information.
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