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Investing Basics: The Difference Between Stocks, Bonds, and ETFs

Published on November 22, 2025

Investing is the key to building long-term wealth, but the terminology can be intimidating. Let's strip away the jargon and look at the building blocks of a portfolio: Stocks, Bonds, and ETFs.

1. Stocks (Equities)

What they are: A stock represents ownership in a company. When you buy a share of Apple, you are a part-owner of Apple.

Risk/Reward: High risk, high reward. Stocks have historically offered the highest returns (averaging 10% annually), but they are volatile. Prices can swing wildly in the short term.

Best for: Long-term growth (10+ years).

2. Bonds (Fixed Income)

What they are: A bond is a loan you give to a company or government. In exchange, they pay you interest over a set period and return your money at the end.

Risk/Reward: Lower risk, lower reward. Bonds are generally safer than stocks but offer lower returns (historically 4-5%). They act as a shock absorber in your portfolio.

Best for: Stability and income.

3. ETFs (Exchange-Traded Funds)

What they are: An ETF is a basket of securities (stocks or bonds) that trades on an exchange like a single stock. Instead of buying one company, you can buy an ETF that holds 500 companies (like an S&P 500 ETF).

Risk/Reward: Varies, but generally lower risk than individual stocks because of diversification. If one company in the ETF fails, you have hundreds of others to cushion the blow.

Best for: Most investors. ETFs offer instant diversification and low fees.

Building a Portfolio

A balanced portfolio typically includes a mix of these. A common rule of thumb is to subtract your age from 110 to determine the percentage of stocks you should own.

Example: Age 30. 110 - 30 = 80% Stocks, 20% Bonds.

Start simple, stay consistent, and let compound interest do the heavy lifting.