Investing Glossary

An employer-sponsored retirement savings plan that allows employees to contribute a portion of their pre-tax salary. Many employers match contributions up to a certain percentage. The 2026 contribution limit is $23,500 ($31,000 if over 50).

A measure of an investment's performance relative to a benchmark index. Positive alpha means the investment outperformed the benchmark; negative alpha means it underperformed. A fund with an alpha of 2 returned 2% more than its benchmark.

The effective annual rate of return on an investment, taking compound interest into account. APY reflects the real return when interest is compounded, unlike simple interest rates.

The strategy of dividing investments among different asset categories like stocks, bonds, cash, and real estate. Proper asset allocation is the primary driver of portfolio returns and risk management.

A market condition where securities prices fall 20% or more from recent highs, typically accompanied by widespread pessimism. The average bear market lasts about 9.6 months, while the average bull market lasts 2.7 years.

A standard against which investment performance is measured. The S&P 500 is the most common benchmark for US stocks. Fund managers are evaluated on their ability to beat their benchmark.

A measure of a stock's volatility relative to the overall market. A beta of 1 means the stock moves with the market. A beta greater than 1 means more volatile; less than 1 means less volatile. A beta of 0 means no correlation.

Shares of large, well-established, financially sound companies with a history of reliable performance. Examples include Apple, Microsoft, Johnson & Johnson, and Coca-Cola. Blue chips are considered safer but typically grow slower than small caps.

A fixed-income debt instrument where an investor loans money to an entity (government or corporation) for a defined period at a fixed or variable interest rate. Bonds pay regular interest (coupon) and return principal at maturity.

An investment account held at a brokerage firm that allows you to buy and sell securities like stocks, bonds, ETFs, and mutual funds. Unlike retirement accounts, there are no contribution limits or withdrawal penalties.

A market condition where securities prices are rising or expected to rise, typically defined as a 20%+ increase from recent lows. Bull markets are characterized by optimism, investor confidence, and economic growth.

The profit from selling an investment for more than you paid. Short-term capital gains (assets held less than 1 year) are taxed as ordinary income. Long-term capital gains (1+ years) are taxed at preferential rates of 0%, 15%, or 20%.

Interest calculated on both the initial principal and all accumulated interest from previous periods. Often called the "eighth wonder of the world," compound interest is the primary wealth-building mechanism for long-term investors.

A decline of 10-20% in a stock, bond, commodity, or index. Corrections are a normal part of market cycles, occurring roughly once per year on average. They differ from bear markets (20%+ decline) and crashes (sudden, sharp drops).

The strategy of spreading investments across various assets, sectors, and geographies to reduce risk. "Don't put all your eggs in one basket." Diversification can reduce portfolio risk without necessarily reducing expected returns.

A distribution of a company's earnings to shareholders, typically paid quarterly. Dividends provide regular income and are a sign of financial health. The average S&P 500 dividend yield is around 1.5-2%.

An S&P 500 company that has increased its dividend payout for at least 25 consecutive years. As of 2026, there are about 65 Dividend Aristocrats, including Procter & Gamble, Coca-Cola, and Johnson & Johnson.

The annual dividend payment divided by the stock price, expressed as a percentage. A stock trading at $100 with a $3 annual dividend has a 3% dividend yield. Higher yields can indicate value or risk.

An investment strategy where you invest a fixed amount at regular intervals regardless of market conditions. DCA reduces the impact of volatility by buying more shares when prices are low and fewer when prices are high.

Dividend Reinvestment Plan — a program that automatically reinvests cash dividends into additional shares of the underlying stock. DRIPs leverage compound growth and are available through most brokerages.

A company's net profit divided by the number of outstanding shares. EPS indicates profitability and is used to calculate the P/E ratio. Higher EPS generally indicates better profitability.

Cash savings covering 3-6 months of living expenses, kept in a high-yield savings account for unexpected costs. Most financial advisors recommend building an emergency fund before investing in the stock market.

A basket of securities that trades on a stock exchange like an individual stock. ETFs typically track an index, sector, or strategy. They offer diversification, low fees, and tax efficiency. Examples: VOO (S&P 500), QQQ (NASDAQ), VTI (Total Market).

The annual fee charged by a fund (ETF or mutual fund) expressed as a percentage of assets. A 0.03% expense ratio means you pay $3 per year per $10,000 invested. Low-cost index funds often have expense ratios under 0.10%.

Financial Independence, Retire Early — a movement focused on aggressive savings (50-70% of income) and investing to achieve financial independence and retire decades earlier than the traditional age of 65.

Evaluating a company's intrinsic value by examining financial statements, earnings, revenue, debt, competitive position, and economic factors. Used primarily for long-term investment decisions.

A mutual fund or ETF designed to track the performance of a specific market index like the S&P 500. Index funds offer broad diversification, minimal management, and very low fees. Warren Buffett recommends them for most investors.

A tax-advantaged retirement account for individuals. Traditional IRA contributions may be tax-deductible with taxed withdrawals. Roth IRA contributions are after-tax with tax-free withdrawals. 2026 limit: $7,000 ($8,000 if 50+).

Companies with a market capitalization over $10 billion. Large-cap stocks (Apple, Microsoft, Amazon) tend to be more stable but grow slower than small caps. The S&P 500 is a large-cap index.

An order to buy or sell a stock at a specific price or better. A buy limit order only executes at the limit price or lower; a sell limit order only at the limit price or higher. Offers price control but may not fill.

How easily an asset can be converted to cash without significantly affecting its price. Stocks of large companies are highly liquid. Real estate and private equity are illiquid. Cash is the most liquid asset.

The total value of a company's outstanding shares. Calculated by multiplying stock price by shares outstanding. Used to categorize companies: micro-cap (<$250M), small-cap ($250M-$2B), mid-cap ($2B-$10B), large-cap ($10B+), mega-cap ($200B+).

An order to buy or sell a stock immediately at the best available price. Market orders guarantee execution but not a specific price. Best for liquid stocks where the spread is narrow.

A pooled investment vehicle managed by a professional fund manager that buys a diversified portfolio of stocks, bonds, or other securities. Unlike ETFs, mutual funds are priced once daily at market close.

Price-to-Earnings ratio — the stock price divided by earnings per share. A P/E of 20 means you're paying $20 for every $1 of annual earnings. Used to gauge if a stock is overvalued or undervalued. The S&P 500 average P/E is about 15-20.

An investment strategy that seeks to match market returns through index funds rather than trying to beat the market through stock picking or market timing. Research shows passive investing outperforms active management over long periods.

The collection of all investments held by an individual or institution. A well-constructed portfolio is diversified across asset classes, sectors, and geographies to balance risk and return.

The process of realigning portfolio weightings by buying or selling assets to maintain your target asset allocation. If stocks outperform and shift from 60% to 70% of your portfolio, you'd sell stocks and buy bonds to return to 60/40.

Real Estate Investment Trust — a company that owns, operates, or finances income-producing real estate. REITs must distribute 90%+ of taxable income as dividends, making them popular for income investors. They trade on stock exchanges like regular stocks.

An investor's ability and willingness to endure losses in their investment portfolio. Risk tolerance depends on age, income, time horizon, financial goals, and emotional comfort with volatility. Higher risk tolerance = more stocks, lower = more bonds.

A retirement account funded with after-tax dollars. Investments grow tax-free, and qualified withdrawals in retirement are completely tax-free. Ideal for those who expect to be in a higher tax bracket in retirement. Income limits apply.

Standard & Poor's 500 — an index of 500 of the largest US publicly traded companies. Widely considered the best single measure of the US stock market. Average annual return since 1926: approximately 10%.

Companies with a market capitalization between $250 million and $2 billion. Small-cap stocks historically offer higher returns than large caps but with greater volatility and risk. The Russell 2000 is the primary small-cap index.

An order that automatically sells a stock when it falls to a specified price, limiting potential losses. A stop-loss at $90 on a $100 stock would sell if the price drops to $90, capping the loss at 10%.

Selling investments at a loss to offset capital gains taxes, then immediately reinvesting in a similar (but not identical) asset. Can save significant money on taxes while maintaining market exposure.

Studying price movements and trading volume through charts and indicators to predict future price behavior. Uses tools like moving averages, RSI, MACD, and support/resistance levels. More common in short-term trading.

A US government debt security with a maturity of 10-30 years. Treasuries are considered the safest investments in the world since they are backed by the full faith and credit of the US government. They pay semi-annual interest.

A statistical measure of the dispersion of returns for a given security or market index. High volatility means large price swings; low volatility means stable prices. The VIX index measures expected volatility of the S&P 500.

The income return on an investment, expressed as a percentage. For bonds, yield is the annual interest relative to price. For stocks, it refers to the dividend yield. Yield and price move inversely for bonds.

A graph showing bond yields across different maturities (3-month to 30-year). A normal yield curve slopes upward (longer = higher yield). An inverted yield curve (shorter > longer) has historically predicted recessions.