unsystematic risk
Unsystematic risk is the danger tied to one specific company or sector, the kind you can reduce simply by spreading your money across different investments.
In plain English
Chidinma sold her jollof rice business shares story to anyone who would listen at the office in Lekki. She had put almost all her savings into one telecoms stock because her uncle worked there and swore the company was about to explode in value. Then a licensing scandal hit the news, the share price fell by half in a week, and Chidinma learned a lesson no uncle could have warned her about.
That kind of loss is unsystematic risk. It is the risk that belongs to one company, one management team, one product line, or one industry, rather than to the whole market. A factory fire, a court case, a bad product launch, a key executive resigning, these are all things that can hurt a single business without touching the rest of the stock market at all.
The comforting part is that this type of risk can be managed, and it does not require any special genius. If Chidinma had spread her savings across shares in telecoms, banking, consumer goods, and maybe a REIT, the telecoms scandal would have stung less because the other holdings were not exposed to the same problem. This is the entire logic behind diversification.
Contrast this with systematic risk, which is the risk you cannot escape by spreading your money around, like a nationwide recession or a global interest rate hike. A Nigerian in Manchester sending money home through a diaspora investment app faces systematic risk when the ₦ weakens generally, but faces unsystematic risk if she has put all her Nigerian investments into one struggling agro export company.
Fund managers earn their keep partly by handling this. A well built mutual fund or ETF holds dozens of companies precisely so that one company's bad month does not sink the whole portfolio.
Chidinma now holds shares across five sectors, and she still checks the news, but she sleeps better knowing no single headline can wipe her out.
Suppose you invest ₦2,000,000 entirely in shares of one Nigerian cement company. If the company announces a major factory shutdown and its share price drops by 40 percent, you lose ₦800,000. Had you spread that same ₦2,000,000 across five unrelated companies, the same shutdown would only have dented one fifth of your money, softening the blow considerably.
Questions people ask
Can unsystematic risk ever be completely removed?
Not completely, but it can be reduced significantly through diversification. Holding shares across different companies and sectors means a problem in one area rarely sinks your entire portfolio, though a small amount of company specific risk will always linger.
Is unsystematic risk the same as bad luck?
Not quite. Bad luck feels random, but unsystematic risk is a known category of risk that careful investors plan for in advance, mainly by not putting all their money into one company or sector.
How is unsystematic risk different from market wide risk?
Unsystematic risk affects one company or industry, like a scandal at a bank. Systematic risk affects the whole market at once, like a national recession or a spike in interest rates, and diversification cannot protect you from that kind.
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