Stocks and Bonds
Two Very Different Ways to Invest
Stocks and bonds are two of the most common building blocks of investing, and they work in fundamentally different ways: a stock represents ownership, while a bond represents a loan.
What Is a Stock?
A stock (also called a share) represents a small piece of ownership in a company. When you buy stock, you become a partial owner — however tiny that stake might be. As an owner, you can potentially benefit in two main ways:
- Price growth: if the company performs well and becomes more valuable, the stock's price may rise, meaning it could be sold later for more than it was bought for
- Dividends: some companies choose to share a portion of their profits directly with shareholders, called a dividend
Stock values can also fall, sometimes sharply, if a company performs poorly or if broader market conditions shift — this is the risk side of owning stock.
What Is a Bond?
A bond works very differently. Buying a bond means lending money to whoever issued it — often a government or a company — which agrees to pay the money back, plus interest, over an agreed period. Bonds are generally considered less risky than stocks because the repayment terms are agreed upfront, making the outcome more predictable (though never entirely risk-free — an issuer could still fail to repay).
Comparing Stocks and Bonds
| Stocks | Bonds | |
|---|---|---|
| What you own | A small piece of a company | A loan you've made to an issuer |
| Typical risk | Higher, values can swing significantly | Generally lower, more predictable |
| Potential return | Price growth and possible dividends | Regular interest payments and repayment of the loan |
| Best suited for | Long-term growth goals, accepting risk | Steadier, more predictable income and lower risk |
Worked Example — Two Different Outcomes
Imagine buying stock in a company for 50 units of currency per share. If the company grows and the share price rises to 70, selling it would earn a 20 unit-of-currency gain. But if the company performs poorly and the price falls to 30, selling would mean a loss.
Now imagine instead lending 50 units of currency by buying a bond that promises 5% interest per year over five years. Each year, the bond pays interest, and at the end of the term, the original 50 is returned (assuming the issuer doesn't fail to repay) — a far more predictable outcome, though typically with less potential for large gains than stocks.
Why Both Exist in a Balanced Approach
Because stocks and bonds behave differently — stocks offer more growth potential with more risk, bonds offer steadier, more predictable returns with less growth potential — many investors hold a mix of both. This is a simple form of diversification, spreading money across different types of investments rather than relying entirely on one.
No Investment Is Risk-Free
It's worth remembering that even bonds, generally considered safer than stocks, are not entirely risk-free — an issuer could still fail to repay in rare cases. Understanding risk and reward is essential no matter which type of investment is being considered.
Key Words
- Stock (share) — a small ownership stake in a company
- Bond — a loan made to an issuer, like a government or company, repaid with interest over time
- Dividend — a portion of company profits sometimes paid directly to shareholders
- Issuer — the government or company that issues a bond in exchange for borrowed money