Investing Basics
Master the fundamentals that drive long-term results: what investing is, how risk and return work together, why diversification matters, how compound interest grows your money, and how to build a simple asset allocation plan.
Overview: a simple path for beginners
Investing is the process of putting money to work so it can grow faster than cash over time. Instead of trying to “beat the market,” most successful investors follow a quieter playbook: diversify broadly, keep costs low, contribute regularly, and stay invested through market ups and downs.
This Investing Basics section is your starting point. Read each guide in order, or jump straight to the concept you need right now. Throughout the series, we link to deeper articles in Risk & Return and core ETF guides like ETF Basics.
Core investing concepts
Start with these five guides. Together, they give you a framework for almost every decision you will make as an investor.
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What is investing?
Define investing, understand why markets exist, and see how investing differs from saving and speculation.
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Risk vs return
Learn why higher potential returns usually come with higher risk, and how to match your risk level to your time horizon.
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Diversification
See how spreading your money across many assets can reduce the impact of any single loser in your portfolio.
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Compound interest
Understand how returns build on top of past returns to create long-term growth — and why time in the market matters.
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Asset allocation
Discover how to divide your money between stocks, bonds, and cash to build a portfolio that fits your goals.
Tip: Read these guides in order once. Later, you can come back and use them as a reference before big decisions.
How to use this basics section
Think of this section as a map, not a set of hot stock tips. The goal is to help you build a repeatable process for making investing decisions, not to predict the next big winner.
- Start with your time horizon and goals (short, medium, long term).
- Choose an asset allocation that fits your risk tolerance.
- Use ETFs or diversified funds as your building blocks.
- Automate contributions where possible and avoid frequent trading.
- Revisit your plan once or twice a year — not every time markets move.
When you are ready to move beyond the basics, explore: Strategies for simple long-term portfolios and Tax & accounts for the best way to hold those investments.
Helpful calculators & tools
Numbers make investing concepts real. Use these tools to experiment with scenarios before you commit to a plan.
- Compound Interest Calculator — see how your money can grow over time.
- Retirement Savings Calculator — estimate how much you may need to invest.
- CAGR Calculator — measure average annual returns over a period.
As you use the tools, refer back to the core concepts to understand the “why” behind the numbers.
Investing basics: quick FAQ
What are the basics of investing?
At a minimum, you should understand: what investing is, how risk and return are linked, why diversification reduces risk, how compound interest works, and how to pick an asset allocation that fits your goals and time horizon. The guides above walk through each of these ideas in detail.
How do I start investing with a small amount of money?
Begin by setting aside a small emergency fund and paying down high-interest debt. Then open a low-cost brokerage or investing account, choose a diversified fund or ETF, and set up an automatic monthly contribution. Consistency matters more than the starting dollar amount.
How much risk should a beginner take?
The right level of risk depends on your time horizon and how you react to market drops. If you have many years before you need the money, you can usually hold more stocks. If you are close to using the money or lose sleep during downturns, include more bonds and cash-like assets. Our Risk & Return and Asset Allocation guides go deeper.
Next: from basics to a real plan
Once you are comfortable with the basics, you are ready to choose the building blocks of your portfolio and turn concepts into action.
We suggest this order:
- Review ETF Essentials to see how ETFs package diversification efficiently.
- Visit Strategies for simple, long-term portfolio ideas.
- Use the Tools hub to stress-test your savings and return assumptions.