Investing terms can often feel confusing, especially for beginners. This glossary is designed to give you clear, simple definitions of the most important concepts in fundamental investing so you can understand how markets work and make better financial decisions.
Fundamental investing focuses on analyzing businesses based on their financial performance, competitive advantage, and long-term value. To do that effectively, you need to understand the language investors use—from basic terms like assets and cash flow to more advanced concepts like return on invested capital (ROIC) and discounted cash flow (DCF).
In this investing glossary, each term is explained in plain language with a focus on real-world understanding—not technical jargon. Whenever possible, definitions are connected to broader investing concepts so you can see how each idea fits into the bigger picture.
You’ll learn key terms related to:
Financial statements and accounting concepts
Business analysis and valuation methods
Stock market fundamentals and investment strategies
Risk, return, and long-term decision-making
If you’re just getting started, this glossary is the perfect place to build your foundation. If you’re already learning, it will help reinforce and clarify the concepts that matter most.
Start with our complete guide: What Is Fundamental Investing
Then explore deeper topics in Investing Basics and Business Analysis
An undervalued stock is a stock that appears to trade below its estimated intrinsic value. In fundamental investing, an undervalued stock matters because it may offer investors the chance to buy ownership in a business for less than the business is worth. The goal is not simply to buy a stock that has fallen in
Multiple compression happens when investors become willing to pay a lower valuation multiple for the same company, earnings, revenue, EBITDA, or cash flow. In fundamental investing, multiple compression matters because a stock can decline even when the underlying business is still growing. If the market assigns a lower valuation multiple to a company, the stock
Multiple Compression Read More »
Multiple expansion happens when investors become willing to pay a higher valuation multiple for the same company, earnings, revenue, EBITDA, or cash flow. In fundamental investing, multiple expansion matters because a stock can rise not only because the business grows, but also because the market assigns a higher valuation to that business. It is one
Multiple Expansion Read More »
Precedent transactions is a valuation method that estimates a company’s value by comparing it to similar companies that were previously acquired or sold. In fundamental investing, precedent transactions help investors understand what buyers have paid for similar businesses in real-world mergers, acquisitions, and takeovers. This method is commonly used in acquisition analysis, private market valuation,
Precedent Transactions Read More »
Comparable company analysis is a valuation method that estimates a company’s value by comparing it to similar publicly traded companies. In fundamental investing, comparable company analysis helps investors understand how the market values similar businesses based on metrics such as revenue, earnings, EBITDA, free cash flow, growth, margins, and return on capital. It is commonly
Comparable Company Analysis Read More »
EBITDA margin is a profitability metric that shows EBITDA as a percentage of revenue. In fundamental investing, EBITDA margin helps investors evaluate how much operating earnings a company generates from each dollar of sales before interest, taxes, depreciation, and amortization. It is commonly used to compare operating profitability, business efficiency, cost structure, and valuation across
Return on assets (ROA) is a profitability ratio that measures how much net income a company generates relative to its total assets. In fundamental investing, return on assets helps investors evaluate how efficiently a company uses its asset base to produce profit. It is especially useful for comparing asset-heavy businesses, banks, insurers, manufacturers, retailers, and
Return on Assets (ROA) Read More »
Return on equity (ROE) is a profitability ratio that measures how much net income a company generates relative to shareholders’ equity. In fundamental investing, return on equity helps investors evaluate how efficiently a company uses shareholder capital to produce profits. It is often used to analyze profitability, management effectiveness, business quality, financial leverage, and long-term
Return on Equity (ROE) Read More »
NOPAT stands for net operating profit after tax. In fundamental investing, NOPAT measures the after-tax profit a company generates from its core operations before the effects of financing decisions such as debt, interest expense, and capital structure. It is commonly used to evaluate operating profitability, return on invested capital (ROIC), business quality, and intrinsic value.
The stock market is the system where investors buy and sell shares of publicly traded companies. In fundamental investing, the stock market matters because it gives investors a way to own pieces of real businesses. Stock prices move every day, but long-term returns are ultimately influenced by business fundamentals such as earnings, cash flow, growth,
