One of the basic principles of portfolio theory is diversification, which aims to minimize risk — measured by standard deviation — without reducing the expected return. As can be seen in the chart below, each individual asset class has its own risk/return profile.
The optimal investment would be located in the upper left corner, i.e. a high expected return with a low standard deviation. Normally, a riskier investment also provides a higher expected return.
Correlations are measured with the so-called correlation coefficient, which can be anywhere between +1 (perfect positive) and -1 (perfect negative). In terms of risk diversification, both values are not desirable, since either the entire portfolio rises or falls with one event, or half of the portfolio rises while the other half falls. Diversification is mainly achieved by adding an asset that ideally shows no correlation with other asset classes. The lower the correlation between the assets in a portfolio, the more risk can be eliminated. An uncorrelated asset is considered the holy grail of portfolio construction.
In the context of this article, strategic asset allocation is assumed, not tactical asset allocation. Subsequently, we are posing a question of long-term allocation into different asset classes and are not considering short-term opportunities in certain industries or the selection of outperforming asset managers.
Let’s first take a look at traditional asset classes such as equities, bonds, commodities and real estate.
As we can see from the upper left quadrant, equities correlate very positively with each other worldwide, so they are only suitable for risk diversification to a certain extent. Gold is very well suited for inclusion in an equity portfolio, but correlates relatively strongly with other commodities and real estate. In particular, adding bonds with a long lifetime next to stocks, commodities and real estate is excellent for diversification purposes.
But what about other alternative asset classes?
Here it can be seen that hedge funds, private equity and venture capital are excellent for diversification if you compare them to all traditional asset classes mentioned before with values ranging from 0.05 to 0.35.
From the results so far, we can conclude that stocks, commodities, real estate and bonds belong in a diversified portfolio just as much as hedge funds and private equity or venture capital. It is therefore not surprising that the most successful investment concept of the last decades is the so-called endowment model, which is rather aggressively designed. Unfortunately, not every investor has access to certain asset classes. Investing in private equity funds, for example, is only possible for professional (EU) or accredited (US) investors and the minimum investment amount is often more than 1 million USD. In my previous article, I already discussed the effect of allocating cryptoassets to different types of portfolios.
How do cryptoassets fit into a portfolio? I have already shown in my last article ( this Research Report ) that they not only generate decent alpha, but also have a positive effect on the Sharpe Ratio (risk/return profile). But what about correlations? Do they legitimize crypto as an addition to a diversified portfolio?
Looking at the entire history of cryptoassets, they have virtually non-existent correlations to stocks, bonds and real estate as well as to commodities, hedge funds and private equity, in the case of Bitcoin just 0.03 (Timber) to 0.10 (stocks). So, there is the holy grail: an asset class that has a very low correlation coefficient to all other traditional and alternative asset classes.
But we do not make it that easy for ourselves. Most crypto-kiddies, who travel around the world and tweet about zero correlations, unfortunately, leave one thing out: an asset can only correlate if it has a certain liquidity, and this is measured in terms of trading volume. So, we do the exercise again, but this time only starting at a daily trading volume of >500 million USD.
The correlations are now still very low, but at least perceptible. Ethereum, for example, now achieves a (still relatively low) correlation of 0.24 with private equity and infrastructure funds. For more details, see the original report here.
Even when looking at crypto critically, it is currently the only asset class that has a low correlation to all traditional as well as alternative assets, making it an excellent portfolio diversifier. While pension funds and endowments have been investing in cryptoassets for a long time, listed companies are now also using it to hedge their own treasury management.
Demand is growing and interest seems to have a much stronger foundation this time than during the hype phase at the end of 2017, not only because more money is being printed worldwide than ever before, but also because “safe” investments are virtually non-existent in this low-interest environment.
Cryptoassets are therefore an excellent “diversifier” and have their raison d’être in modern portfolio construction. They should be just as much a component of every portfolio as hedge funds and private equity or venture capital. But is it sufficient to allocate only Bitcoin or is it worthwhile to include a crypto index into the portfolio?
Compared to other asset classes, the correlations of 0.17 to 0.63 of Bitcoin to other cryptoassets are relatively high, but for the most part still low to moderate. It is particularly interesting that these correlations have decreased significantly in recent years. Bitcoin, Ethereum and Binance have completely distinct value drivers, which is now also reflected in independent value developments as mass adoption increases. If these different value drivers continue to prove true, then individual cryptoassets should decouple even further in the future. You can find more information about our fund here.
So, what is left from this analysis:
- A traditional portfolio should include not only stocks, but also real estate, gold and bonds
- Ideally, hedge funds and private equity are also allocated in order to achieve the highest possible diversification in the portfolio
- Including trading volumes, which have been ignored so far, cryptos have at least a perceptible correlation to some other asset classes, but are still the only asset class with a very low correlation to all other portfolio components
- Not only are pension funds and endowments now invested in crypto assets, but also publicly-listed companies
- Cryptoassets have different value drivers and seem to decouple from each other in the long term, which makes diversification within crypto essential
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