Stock
Key Takeaways
- A stock represents a fractional ownership share in a publicly traded company
- Stocks are traded on exchanges like the NYSE and NASDAQ and fluctuate in price based on supply and demand
- Investors can profit from stocks through capital appreciation and dividends
- Stocks are generally considered higher-risk, higher-reward investments compared to bonds
Definition
A stock, also known as a share or equity, represents a unit of ownership in a publicly traded corporation. When you purchase a stock, you become a partial owner of that company, entitled to a proportional claim on its assets and earnings. Companies issue stock to raise capital for operations, expansion, and other business activities.
Stocks are bought and sold on organized exchanges such as the New York Stock Exchange (NYSE) and the NASDAQ. The price of a stock is determined by supply and demand in the market, influenced by factors like company performance, industry trends, and broader economic conditions.
There are two main types of stock: common stock and preferred stock. Common stockholders have voting rights and may receive dividends, while preferred stockholders typically receive fixed dividends and have priority claims on assets in the event of liquidation, but usually lack voting rights.
How It Works
When a company decides to go public, it conducts an initial public offering (IPO), issuing shares to investors in exchange for capital. After the IPO, shares trade on the secondary market between investors. The stock price moves up or down based on investor sentiment, earnings reports, macroeconomic data, and countless other factors.
Investors can buy stocks through brokerage accounts using different order types, such as market orders or limit orders. The total value of a company's outstanding shares is its market capitalization. Investors profit from stocks in two primary ways: capital gains (selling shares at a higher price than purchased) and dividends (periodic cash payments from the company).
Stock performance is often evaluated using metrics like the price-to-earnings ratio (P/E), earnings per share (EPS), and dividend yield. Investors use fundamental and technical analysis to make buy and sell decisions.
Example
Suppose you purchase 100 shares of Apple (AAPL) at $175 per share, investing a total of $17,500. Over the next year, Apple's stock price rises to $195 per share, making your holdings worth $19,500. You have an unrealized capital gain of $2,000, or about 11.4%. Additionally, Apple paid quarterly dividends totaling $0.96 per share during that year, earning you $96 in dividend income. Your total return would be $2,096, or approximately 12%.
Why It Matters
Stocks are one of the most important investment vehicles for building long-term wealth. Historically, the U.S. stock market has returned an average of about 10% per year before inflation, outperforming bonds, savings accounts, and most other asset classes over extended periods. Stocks allow everyday investors to participate in the growth of major companies and the broader economy.
Understanding stocks is fundamental to portfolio construction and asset allocation. Whether through individual stock picking or investing in index funds and ETFs, stocks play a central role in most retirement and investment strategies.
Advantages
- Potential for high long-term returns compared to other asset classes
- Provide ownership stake and voting rights in companies
- Highly liquid — can be bought and sold quickly on exchanges
- Many stocks pay dividends, providing income in addition to growth
Limitations
- Prices can be volatile, leading to significant short-term losses
- Individual stocks carry company-specific risk that can be hard to predict
- Requires research and knowledge to invest effectively
- No guaranteed returns — investors can lose their entire investment
Frequently Asked Questions
Related Terms
Browse more definitions in the financial terms glossary.