In the previous lesson, you learned how stock markets function as organized marketplaces. Now it is time to understand exactly what is being traded on those markets: shares. A share is not just a ticker symbol on a screen or a line on a chart. It represents something real, a fractional ownership stake in a living, operating business.
This lesson explains what shares are, how they come into existence, what makes their prices move, and the two fundamental ways investors profit from owning them.
What is a Share?
Owning shares gives you certain rights:
- Voting rights, Common shareholders can vote on corporate matters such as electing the board of directors and approving major transactions. Typically, one share equals one vote.
- Dividend rights, If the company distributes profits to shareholders, you receive your proportional share.
- Residual claim, If the company is liquidated, shareholders have a claim on remaining assets after all debts are paid. In practice, this rarely yields significant value because creditors are paid first.
- Transfer rights, You can sell your shares to another investor on the stock exchange at any time during market hours.
It is worth noting that owning shares of a large company does not give you any say in day-to-day operations. If you buy 100 shares of Apple, you do not get to attend product meetings. Your influence is exercised through votes at annual shareholder meetings, and for small individual investors, that influence is negligible.
How Shares Are Created: The IPO
The IPO Process
When a company decides to go public, the process typically follows these steps:
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Selection of investment banks, The company hires one or more investment banks (called underwriters) to manage the offering. These banks help determine the offering price, buy the shares from the company, and sell them to investors.
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Regulatory filing, The company files a registration statement (S-1 in the US) with the Securities and Exchange Commission (SEC), disclosing detailed financial information, business risks, and how the proceeds will be used.
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Roadshow, Company executives present to potential institutional investors (pension funds, mutual funds, hedge funds) to generate interest and gauge demand.
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Pricing, Based on investor demand, the underwriters set the IPO price. This is the price at which shares are initially sold to institutional investors.
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First day of trading, The shares begin trading on the stock exchange. The market price may differ significantly from the IPO price, depending on demand.
Why Companies Go Public
Companies go public for several reasons:
- Raise capital for expansion, research, debt repayment, or acquisitions
- Provide liquidity for early investors and employees who hold equity
- Increase visibility and credibility with customers, partners, and talent
- Create a currency, publicly traded shares can be used for acquisitions
The trade-off is significant. Public companies face quarterly earnings pressure, extensive disclosure requirements, regulatory compliance costs, and the constant scrutiny of analysts and the financial media.
What Drives Share Prices?
A share's price at any moment reflects the market's collective assessment of the company's value. But what shapes that assessment? The drivers fall into two categories.
Company-Specific Factors
- Earnings and revenue, The most fundamental driver. Companies that grow their earnings consistently tend to see their share prices rise. Quarterly earnings reports are among the most closely watched events on Wall Street.
- Management quality, Investor confidence in the leadership team affects valuation. CEO changes can move share prices significantly.
- Competitive position, Market share, brand strength, patents, and barriers to entry all influence how investors value a company.
- Growth prospects, Markets are forward-looking. A company with strong future growth expectations may command a high price even if current earnings are modest.
- Dividend policy, Companies that pay consistent, growing dividends attract income-focused investors, providing price support.
Market-Wide Factors
- Interest rates, When rates rise, bonds become more attractive relative to stocks, and borrowing costs increase for companies. This generally pressures stock prices downward.
- Economic conditions, GDP growth, employment, consumer confidence, and business investment all affect corporate earnings broadly.
- Investor sentiment, Fear and greed move markets in the short term. Panic selling can push prices well below fair value; euphoria can inflate them above it.
- Geopolitical events, Wars, trade disputes, sanctions, and political instability create uncertainty, which markets generally dislike.
Two Ways to Profit from Shares
Capital Gains
The most intuitive way to profit: buy a share at a lower price, sell it at a higher price. If you buy shares at $50 and sell at $75, your capital gain is $25 per share, or 50%.
Capital gains are the primary focus of most active traders and growth investors. Growth companies, those reinvesting profits into expansion rather than paying dividends, rely on capital appreciation to reward shareholders. Amazon, for example, paid no dividends for decades while its share price rose from $18 at its 1997 IPO to over $3,000.
Dividends
Not all companies pay dividends. Young, fast-growing companies typically reinvest all profits into the business. Mature, stable companies, utilities, consumer staples, banks, are more likely to pay regular dividends.
The S&P 500 Dividend Aristocrats index tracks companies that have increased their dividends for at least 25 consecutive years. Companies like Coca-Cola, Johnson & Johnson, and Procter & Gamble have raised dividends for over 50 consecutive years, demonstrating the stability that dividend-focused investors seek.
Over the long term, dividends have contributed a significant portion of total stock market returns. Historical analysis shows that dividends have accounted for roughly one-third to 40% of the S&P 500's total return over multi-decade periods, making them a crucial component of long-term wealth building.
Market Capitalization: Measuring Company Size
Market capitalization (market cap) is the total market value of a company's outstanding shares. The formula is straightforward:
Market Cap = Share Price x Total Shares Outstanding
If a company has 1 billion shares outstanding and each share trades at $150, the company's market cap is $150 billion.
Market cap is used to categorize companies by size:
| Category | Market Cap Range | Examples |
|---|---|---|
| Mega-cap | $200 billion+ | Apple, Microsoft, Amazon |
| Large-cap | $10–200 billion | Nike, Goldman Sachs, Starbucks |
| Mid-cap | $2–10 billion | Various established companies |
| Small-cap | $250 million–2 billion | Smaller public companies |
| Micro-cap | Under $250 million | Very small public companies |
Market cap matters because it influences a stock's characteristics. Large-cap stocks tend to be more stable, more liquid, and less volatile. Small-cap stocks tend to offer higher growth potential but with greater risk and less liquidity.
As of recent data, the combined market capitalization of US equities alone exceeds $50 trillion, with the largest companies, Apple, Microsoft, NVIDIA, Amazon, and Alphabet, each exceeding $1 trillion individually.
Shares and Currency Markets
Understanding shares helps forex traders in practical ways:
- Equity market performance attracts foreign capital, which requires currency transactions. A booming US stock market attracts global investment in dollars, strengthening the USD.
- Stock market crashes trigger risk-off flows into safe-haven currencies. The 2008 financial crisis saw massive flows into the US dollar and Japanese yen as global stocks collapsed.
- Earnings season (when major companies report quarterly results) can affect currency markets through its impact on broad market sentiment and sector-specific capital flows.
- Equity indices are traded alongside forex by many participants, and understanding how stocks work helps you interpret cross-market signals.
Key Takeaways
- A share represents fractional ownership in a corporation, giving holders voting rights, dividend rights, and a residual claim on assets.
- Companies create shares through IPOs, raising capital from public investors in exchange for accepting regulatory oversight and public disclosure requirements.
- Share prices are driven by company-specific factors (earnings, management, growth) and market-wide factors (interest rates, economic conditions, sentiment).
- Investors profit from shares through capital gains (price appreciation) and dividends (cash distributions from earnings).
- Market capitalization (share price multiplied by shares outstanding) measures company size, with the largest US companies each exceeding $1 trillion.
- Dividends have historically accounted for roughly one-third to 40% of the S&P 500's total long-term return.
- Equity market performance directly affects forex through capital flows and risk sentiment, making stock market knowledge valuable for currency traders.
This lesson is for educational purposes only. It does not constitute financial advice. Trading forex involves significant risk of loss and is not suitable for all investors.