Portfolio Update – June 2021 – A study of risk parity portfolios against S&P 500 since 1927
Earlier this week, I received a very good comment to the monthly portfolio update article which I published last month. In that article, I discussed how the stock market seems greatly overvalued based on several widely different indicators, measuring both listed stock’s earnings and assets, as well as market cap in relation to GDP.
Based on the indicators CAPE (Shiller's PE), Q Ratio, and the Buffett Indicator (market cap to GDP), future potential returns of the stock market over the next decade appear limited.
In the light of this, the question arises whether the All Seasons Portfolio would be a better choice, and how it has performed under similar conditions in the past when compared with the S&P 500. The comment reads as quoted here below and this is what I have set out to answer in this month's article.
We can anticipate that future returns of the stock market will be below what we have become used to in recent years based on these metrics, and the fact that returns 1) usually are clustered in a way that good years are followed by further good years and bad years are followed by further bad years, and 2) always regress to the mean (between 7-10% annually) and that the last decade has seen annual returns far above this level.
When acknowledging the current worrying state of the equity markets, it becomes relevant to further understand how the All Seasons Portfolio has performed versus the stock market under similar market conditions.
Instead, it is relevant to compare against 1) long-term performance over several decades, and 2) periods with similar conditions as where we are currently. To me, these are two extremely central questions to clarify, and that I wanted to have answers to as well.