Stocks: What They Are and How They Work
A stock, also called a share or equity, generally represents an ownership interest in a company. Investors who own shares may participate in the company's financial performance, although returns and shareholder rights depend on the type of stock and the company's circumstances.
What Is a Stock?
Companies may issue shares to raise capital. When an investor buys shares, they acquire an ownership interest in the company represented by those shares.
The value of a stock can rise or fall based on many factors, including company performance, investor expectations, economic conditions and broader market developments.
A stock generally represents a partial ownership interest in a company.
How Do Stocks Work?
A company's shares can be bought and sold in financial markets where buyers and sellers agree on a market price. That price can change throughout the trading day based on supply, demand and other information affecting investor expectations.
Stockholders may have certain rights depending on the class of shares and applicable rules. These can vary between companies and jurisdictions.
If an investor purchases shares in a company, the market value of those shares may increase or decrease over time. The investor's return can depend on changes in the share price, dividends if any are paid, and the costs associated with buying or selling the investment.
How Can Investors Earn Returns?
Investment returns from stocks can come from different sources. Common examples include:
- Price appreciation: The market price of shares increases.
- Dividends: A company distributes part of its earnings or other available funds to eligible shareholders.
Neither price appreciation nor dividends are guaranteed. A company may reduce, suspend or not pay dividends, and share prices can decline.
Why Do Stock Prices Change?
Stock prices can be influenced by many factors, including:
- Company earnings and financial performance.
- Changes in management or business strategy.
- Economic conditions.
- Interest rates and inflation.
- Industry developments.
- Investor expectations and market sentiment.
- Unexpected events and broader market conditions.
Different Types of Stocks
Stocks can be grouped or described in different ways. Examples include:
- Common shares.
- Preferred shares.
- Large-cap, mid-cap and small-cap companies.
- Growth-oriented and value-oriented companies.
- Stocks from different industries or geographic markets.
These categories are descriptive and do not automatically determine whether an investment is suitable or how it will perform.
Risks of Investing in Stocks
Stocks can involve substantial investment risk. Their value can decline, sometimes significantly, and investors may lose some or all of their invested capital.
Important risks can include market risk, company-specific risk, economic risk, liquidity risk and concentration risk.
Stocks and Diversification
Owning shares in multiple companies or using investment funds that hold different securities may provide diversification. However, diversification does not guarantee profits or prevent all losses.
The level of diversification depends on the number, type and relationship of the underlying investments.
Questions to Consider
- What does the company do and how does it generate revenue?
- What financial and business risks does the company face?
- How concentrated is the investment portfolio?
- What is the intended investment time horizon?
- How much volatility or potential loss can the investor tolerate?
- How does the investment fit within broader financial goals?
Key Takeaways
- A stock generally represents an ownership interest in a company.
- Stock prices can rise or fall based on company, market and economic factors.
- Potential returns may come from price changes and dividends.
- Dividends and positive returns are not guaranteed.
- Stocks can involve significant volatility and the risk of investment losses.
- Diversification may help manage certain risks but cannot eliminate all losses.