Most investment professionals agree that, although it does not guarantee against loss, diversification is the most important component of reaching long-range financial goals while minimizing risk. Here, we look at why this is true and how to accomplish diversification in your portfolio.
- Diversification reduces risk by investing in investments that span different financial instruments, industries, and other categories.
- Risk can be both undiversifiable or systemic, and diversifiable or unsystematic.
- Investors may find balancing a diversified portfolio complicated and expensive, and it may come with lower rewards because the risk is mitigated.
Different Types of Risk
Investors confront two main types of risk when investing. The first is undiversifiable, which is also known as systematic or market risk. This type of risk is associated with every company. Common causes include inflation rates, exchange rates, political instability, war, and interest rates. This type of risk is not specific to a particular company or industry, and it cannot be eliminated or reduced through diversification—it is just a risk investor must accept.
The second type of risk is diversifiable. This risk is also known as unsystematic risk and is specific to a company, industry, market, economy, or country. It can be reduced through diversification. The most common sources of unsystematic risk are business risk and financial risk. Thus, the aim is to invest in various assets so they will not all be affected the same way by market events.
Why You Should Diversify
Let’s say you have a portfolio of only airline stocks. If it is announced that airline pilots are going on an indefinite strike and that all flights are canceled, share prices of airline stocks will drop. That means your portfolio will experience a noticeable drop in value.
If, however, you counterbalanced the airline industry stocks with a couple of railway stocks, only part of your portfolio would be affected. In fact, there is a good chance the railway stock prices would climb, as passengers turn to trains as an alternative form of transportation.
But, you could diversify even further because there are many risks that affect both rail and air because each is involved in transportation. An event that reduces any form of travel hurts both types of companies. Statisticians, for example, would say that rail and air stocks have a strong correlation.
Therefore, you would want to diversify across the board, not only different types of companies but also different types of industries. The more uncorrelated your stocks are, the better.
In recent years, cryptocurrencies have also become an extremely potential asset that you can include in a portfolio, alongside traditional currencies.
Not just owning many different types of assets, asset allocation and portfolio diversification require you to have the right proportion of each asset class to be invested; as well as ensuring the diversity within each of these asset groups. Assuming 20% of your investment is in stocks, you would also have to divide that 20% into the stocks of different businesses in order to maintain consistent diversity. The goal of this action is to maximize returns while ensuring the lowest possible risk.
Source: Investopedia