The main investment types you can choose from
When you have money to invest, you are choosing between a few broad categories: stocks (pieces of companies), bonds (loans you make to governments or corporations), mutual funds and exchange-traded funds (bundles of stocks or bonds managed for you), and cash-like accounts (savings accounts, money market accounts, certificates of deposit). Each one works differently, carries different risk, and grows your money at different speeds.
You do not have to pick just one. Most people own a mix of these things. The mix you choose depends on how long you can leave the money alone, how much you can afford to lose, and what you are saving for.
Key Takeaways
- Stocks let you own a piece of a company and grow your money faster, but the value goes up and down and you can lose what you put in.
- Bonds are loans you make to a government or company; they pay you interest and are generally safer than stocks, but the returns are smaller.
- Mutual funds and ETFs bundle many stocks or bonds together so you own a little bit of many companies instead of betting on one.
- Savings accounts, money market accounts, and CDs keep your money safe and let you access it, but they grow slowly because interest rates are low.
- Retirement accounts like 401(k)s and IRAs are not investment types themselves—they are containers that hold stocks, bonds, or other investments and give you tax breaks.
Stocks: owning a piece of a company
When you buy a stock, you own a small share of a company. If the company does well and grows, the stock price usually goes up and you can sell it for more than you paid. If the company struggles, the price goes down. You can also receive dividends—payments the company sends to shareholders from its profits—though not all stocks pay them.
Stocks are riskier than bonds or savings accounts because prices move around a lot and you can lose money. But over long periods (10 years or more), stocks have historically returned more than safer investments. You buy and sell stocks through a brokerage account—a company like Fidelity, Charles Schwab, or Vanguard that holds your money and executes your trades.
Most people do not pick individual stocks. Instead, they buy mutual funds or ETFs that hold many stocks at once, which spreads the risk.
Bonds: lending money for a fixed return
A bond is a loan. When you buy a bond, you are lending money to a government or a corporation. In return, they promise to pay you interest at a set rate and return your original money on a specific date. For example, a 10-year Treasury bond might pay you 4% per year and give your money back after 10 years.
Bonds are safer than stocks because the payment is promised in advance and does not depend on whether the company is profitable. But the returns are smaller—you are not betting on growth, just collecting interest. If you need your money before the bond matures, you can sell it, but the price may have changed depending on interest rates.
Government bonds (Treasury bonds, bills, and notes) are the safest because the U.S. government backs them. Corporate bonds pay higher interest but carry more risk if the company fails.
Mutual funds and ETFs: bundles of investments
A mutual fund is a pool of money from many investors that a professional manager uses to buy stocks, bonds, or both. You own a share of the whole pool. An exchange-traded fund (ETF) works the same way but trades like a stock—you can buy and sell it throughout the day at changing prices, whereas mutual funds trade once per day after the market closes.
Both let you own pieces of hundreds of companies or bonds with one purchase. This spreads your risk: if one company in the fund struggles, it does not sink your whole investment. Mutual funds and ETFs charge fees (called expense ratios) that come out of your returns, usually between 0.03% and 1% per year depending on the fund.
Index funds and index ETFs are a popular type that simply track a market index like the S&P 500 (500 large U.S. companies) or the total stock market. They have low fees because a computer does the picking, not a human manager.
Savings accounts, money market accounts, and CDs
These are the safest places to put money because they are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account at each bank. A savings account lets you deposit and withdraw money whenever you want and earn a small amount of interest. A money market account works similarly but usually pays slightly higher interest in exchange for keeping a larger balance. A certificate of deposit (CD) requires you to lock your money away for a set period (three months to five years) in exchange for a may provide interest rate.
The trade-off is that interest rates on these accounts are low—often 4% to 5% per year right now, though rates change. You will not grow your money fast, but you will not lose it either. These are good places for money you need within a few years or cannot afford to lose.
Retirement accounts: tax-advantaged containers
A retirement account is not an investment type itself—it is a container that holds stocks, bonds, mutual funds, or cash. The advantage is that the government gives you tax breaks on the money inside. The most common types are 401(k)s (offered by employers), traditional IRAs, and Roth IRAs (both opened on your own).
In a traditional IRA or 401(k), you contribute money before taxes are taken out, which lowers your taxable income that year. You pay taxes when you withdraw the money in retirement. In a Roth IRA, you contribute money after taxes, but the money grows tax-free and you do not pay taxes on withdrawals in retirement.
All three have rules about when you can withdraw money without penalties (usually age 59½) and how much you can contribute per year. If your employer offers a 401(k) match—meaning they add money to your account if you contribute—that is assistance programs and worth taking.
How to decide what to invest in
The right mix depends on three things: your time horizon (how long until you need the money), your risk tolerance (how much you can handle the value going up and down), and your goals (retirement, a house down payment, general wealth building).
If you need the money within three years, keep it in a savings account or CD. If you will not touch it for 10 years or more, you can afford to own more stocks because you have time to ride out the ups and downs. If you are saving for retirement and are young, stocks make sense because you have decades to recover from downturns. If you are close to retirement, bonds and safer accounts become more important.
Most people benefit from owning a mix—some stocks for growth, some bonds for stability, some cash for emergencies. A simple starting point is a target-date fund, which is a mutual fund or ETF that automatically adjusts from stocks to bonds as you get closer to retirement.
Frequently Asked Questions
Can I invest with a small amount of money?
Yes. Most brokerages let you open an account with no minimum, and you can buy fractional shares of stocks and ETFs for as little as $1. Some mutual funds have minimums of $500 to $3,000, but many brokerages waive these if you set up automatic monthly deposits.
What is the difference between a brokerage account and a retirement account?
A brokerage account has no contribution limits and no age restrictions on withdrawals, but you pay taxes on gains and dividends each year. A retirement account has contribution limits and penalties for early withdrawal, but you get tax breaks now or in retirement. Most people use both.
Should I pick individual stocks or funds?
Most people do better with funds because they spread risk and require less research. Individual stocks can outperform, but they also require you to pick winners, which is hard. If you are starting out, funds are the safer choice.
What happens if the company I invested in goes bankrupt?
If you own stock, it can become worthless. If you own a bond, you may recover some money as a creditor, but not all. If you own a fund, one company failing does not sink the whole investment because the fund holds many companies.
Is there a best time to start investing?
The best time is as soon as you have money to invest and an emergency fund set aside. Time in the market matters more than timing the market—starting early with small amounts beats waiting for the perfect moment.