Investment Risks

Stock trading dictionary: meaning, example and how traders use it.

Last updated: October 17, 2026

Definition: Investment risks are the possibilities that an investment will lose value, earn less than expected, or be hard to sell. They include market, company, interest rate, inflation, liquidity, and credit risk, among others.

Main types of investment risks

  • Market risk: broad declines that pull down most stocks, as in a bear market. Diversification does not eliminate it.
  • Company-specific risk: a single business misses expectations, loses a lawsuit, or faces bankruptcy.
  • Interest rate risk: rising rates reduce the price of an existing bond and can pressure stock valuations.
  • Inflation risk: returns fail to keep up with inflation, eroding purchasing power. Cash is especially exposed.
  • Liquidity risk: an asset cannot be sold quickly at a fair price because of weak liquidity.
  • Credit risk: a borrower fails to make interest or principal payments.
  • Currency risk: foreign investments lose value when exchange rates move against you.

Investment risk example

Suppose you put $10,000 into a single stock. If the company stumbles and the share price falls 50%, you have $5,000. Now suppose instead you split the money across 20 stocks in different sectors, and one of them falls 50% while the others are flat. Your loss is about $250, or 2.5%. That illustrates how diversification reduces company-specific risk. It would not, however, have protected you if all 20 stocks fell together in a broad market decline.

Measuring and managing investment risks

Common measures include volatility, which tracks how much returns swing, and beta, which shows how sensitive a stock is to market moves. Investors manage risk by diversifying across assets and sectors, matching investments to their time horizon, keeping an emergency cash reserve, rebalancing a portfolio, and limiting borrowed money. Using leverage or margin magnifies losses as well as gains.

Questions to ask before investing

A few practical questions help frame risk. How long until you need the money? Short time horizons leave less room to recover from declines. How much could the investment fall in a bad year, and could you hold through that? Is the asset easy to sell if needed? Do you understand how it makes money and what could go wrong? Are you relying on borrowed money? Writing down the answers before buying makes it easier to stick to a plan when markets turn volatile, and it can reveal concentrations that are larger than intended.

Risk and return

Higher expected returns generally come with higher risk, which is why stocks have historically been more volatile than high-quality bonds or insured deposits. Taking no risk is not risk-free either: money held in cash may be safe from market swings but exposed to inflation. The right mix depends on goals, time frame, and the ability to tolerate losses without being forced to sell.

Frequently asked questions

What are the main types of investment risk?

Key types include market risk, company-specific risk, interest rate risk, inflation risk, liquidity risk, credit risk, and currency risk.

Can diversification remove all investment risk?

No. Diversification reduces risk tied to individual companies or sectors, but it cannot eliminate market risk that affects most investments at the same time.

What is the riskiest type of investment?

Risk depends on the specific investment, but highly leveraged positions, concentrated bets on speculative companies, and complex derivatives can result in large or even total losses.

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For information only, not investment advice. See the disclaimer.