Unsystematic risk can also be further divided into two individual subcategories: business risk and financial risk.

Business Risk

Business risk is the uncertainty that arises due to the nature of the business activity that the company you are investing in is engaged in. For example, very speculative businesses or those that are in a new industry face a higher degree of uncertainty than businesses in more stable industries.  Disruptions in the firm’s operations, challenges from competitors, legal trouble, and a damaged reputation are all examples of ways that a company may face business risks. Another example includes a shortage in product manufacturing. All of these are specific risks because they negatively impact individual companies or sectors.

Financial Risk

Firms must finance their assets in one way or another. Owners of companies may contribute all of the capital needed to fund the business, they can issue securities like stocks and bonds, or they can borrow money from a bank or other lender. When a business borrows money, it must repay that money. The required repayment of principal and interest creates an obligation for the firm that will reduce its net income. If a company is unable to repay that obligation, it may go out of business.  Firms that borrow money are often also subject to additional restrictions as a condition of the loan, such as providing collateral or limits on dividends.

Alternate names: specific risk, diversifiable risk

How Does Unsystematic Risk Work?

Unsystematic risk, in combination with systematic risk, is part of the total risk of an investment portfolio.  Systematic risks are those that affect all companies in a market. Unlike systematic risk, unsystematic risk can be reduced specifically through diversification.  To reduce unsystematic risk through diversification, you need to create a portfolio of securities whose returns are negatively correlated. That simply means that the change in return of one security is offset by the change in return on another security. These changes offset each other, which reduces the overall change on the portfolio’s return from one period to the next. A well-diversified portfolio will also often protect you against a financial crisis, because risks will be reduced.

What It Means for Individual Investors

Individual investors can reduce their total investment risk by investing in securities whose returns are uncorrelated because doing so reduces unsystematic risk. The reduction in unsystematic risk through diversification can reduce the variability in your portfolio returns. Since unsystematic risk can be reduced through diversification, but systematic risk cannot, that means an individual investor cannot completely eliminate risk and must still be willing to bear some risk if they want to invest.  Investors should understand how their investments are exposed to various types of risk, as well as the total level of risk they are taking in their portfolios. They need to be aware of how that risk relates to their own risk tolerance and affects their ability to achieve financial goals. If you have concerns about your investment strategy and the risk associated with it, consider consulting a financial advisor.