Definition:
A Stock represents a share of ownership in a company. When you purchase stock, you own a fraction of that company, entitling you to a portion of its assets, earnings, and in some cases, voting rights. Stocks are a primary way for companies to raise capital and for investors to build wealth through capital appreciation and dividends.

Types of Stocks:

TypeDescription
Common StockOffers voting rights and potential dividends; most widely traded form
Preferred StockUsually no voting rights; has fixed dividends and priority in liquidation
Class A / B SharesDifferent voting power or dividend rights based on share class
Growth StockExpected to grow faster than the market; usually reinvests earnings
Value StockTrades below its intrinsic value; often pays dividends
Dividend StockRegularly pays a portion of earnings to shareholders

How Stocks Work:

  • Companies issue stock via Initial Public Offerings (IPOs) or secondary offerings
  • Stocks are traded on public exchanges like the NYSE, Nasdaq, LSE, or Borsa Istanbul
  • Stock prices fluctuate based on supply and demand, company performance, and market sentiment
  • Investors can earn money through:
    • Capital Gains (buying low and selling high)
    • Dividends (regular income from company profits)

Stock Example:

If you own 100 shares of a company with 1,000,000 total shares outstanding, you own 0.01% of the company.
If the company declares a $1 dividend per share, you’d receive $100 in total dividends.

Why People Invest in Stocks:

  • Wealth Creation: Long-term appreciation outpaces inflation
  • Ownership: Shareholders can vote on key company decisions
  • Liquidity: Easily bought and sold during market hours
  • Diversification: Thousands of companies across various industries and regions
  • Passive Income: Many stocks pay recurring dividends

Risks of Stock Investing:

  • Market Risk: Prices can fall due to economic or sector-wide events
  • Company-Specific Risk: Poor earnings or scandals can hurt value
  • Volatility: Short-term fluctuations can cause emotional stress
  • Dividend Cuts: Companies can reduce or eliminate dividend payments
  • Dilution Risk: New share issuance can reduce existing ownership value

Stock vs. Bond:

FeatureStockBond
OwnershipRepresents ownership in a companyRepresents a loan to the company
ReturnsDividends + capital gainsFixed interest payments
Risk LevelHigherLower (in general)
Priority in BankruptcyPaid lastPaid before shareholders

How to Buy Stocks:

  1. Open a brokerage account
  2. Research companies or ETFs
  3. Place a market or limit order
  4. Monitor performance over time

Common Metrics Used in Stock Analysis:

  • P/E Ratio (Price-to-Earnings)
  • Dividend Yield
  • Market Capitalization
  • Earnings per Share (EPS)
  • Beta (Volatility Indicator)
  • Return on Equity (ROE)

Related Terms:

  • Equity
  • Shareholder
  • Preferred Stock
  • Stock Exchange
  • IPO (Initial Public Offering)
  • Dividend
  • Capital Gain
  • Market Order / Limit Order
  • Portfolio Diversification
  • ETF (Exchange-Traded Fund)