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3 terms401k
Clear guide to 401k plans: what they are, how they work, Roth vs traditional, employer match, taxes, withdrawals, rollovers, and tips to grow retirement savings.
52-week high/low — What It Means and How Investors Use It
Learn what the 52-week high and 52-week low are, how to read them, why they matter, the limits, and simple ways investors use them to screen and trade stocks.
529 plan
A clear guide to 529 plans: what they are, how they work, tax benefits, types, limits, and tips to save for college without costly mistakes.
A
13 termsActive Investing
Learn what active investing is, how it works, common strategies, costs and risks, and when to choose active versus passive investing. Clear, practical guide for beginners.
Adjustable-Rate Mortgage (ARM) — What It Means, How It Works, and When to Use One
Learn what an Adjustable-Rate Mortgage (ARM) is, how rates change, key terms, pros and cons, and when an ARM makes sense. Clear examples and questions to ask lenders.
Alpha (α) — Finance Definition and How It Works
Alpha (α) measures the excess return of an investment over its expected return given its risk. Learn the formula, examples, uses, and limitations.
American Depositary Receipt (ADR)
An easy guide to American Depositary Receipts. Learn what ADRs are, how they work, types, benefits, risks, and how investors trade foreign stocks in U.S. markets.
Annual Percentage Rate (APR)
APR, or annual percentage rate, shows the yearly cost of borrowing. Learn what APR means, how it differs from interest and APY, how lenders calculate it, and how to compare loan offers.
Annual Percentage Yield (APY)
APY is the real yearly return on a deposit account after compounding. Learn what APY means, how it is calculated, how it differs from APR, and how to compare savings accounts and CDs.
Annuity
Learn what an annuity is, the main types, how payments and taxes work, simple calculations, and key questions to ask before buying one.
Arbitrage: How It Works, Types, Risks, and Simple Examples
Arbitrage explained in plain language. Learn what arbitrage is, common types, a simple example, how it works, risks, and how traders find opportunities.
Asset
Learn what an asset is in finance. Clear definition, types (current, fixed, intangible), how assets appear on the balance sheet, valuation methods, and key ratios like current ratio and return on assets.
Asset allocation
Clear, practical guide to asset allocation. Learn what it is, why it matters, how to pick an allocation, rebalancing, examples, common mistakes, and simple rules to use.
Asset-Backed Security (ABS)
An easy-to-read guide to asset-backed securities (ABS): what they are, how they work, types, risks, benefits, and how investors evaluate them.
Auction Rate Securities
Clear, simple explanation of auction rate securities (ARS): what they are, how auctions work, risks, the 2008 market freeze, and what investors should do now.
Authorized Participant
What an Authorized Participant is, how they create and redeem ETF shares, and why they matter to investors.
B
12 termsBalance sheet
A clear, simple guide to the balance sheet. Learn what it shows, its parts, the key formulas, a small example, and how to read one.
Bankruptcy
Bankruptcy explained in plain English. Learn what bankruptcy means, the main U.S. types (Chapter 7, 11, 13), how the process works, what debts are wiped out, and how it affects your credit.
Basis Point (bp)
A clear guide to basis points. Learn what a basis point is, how to convert between basis points and percent, why markets use them, practical examples, and common mistakes.
Bear Market - Definition, Signs, How to Invest, and Examples
A clear, simple guide to bear markets. Learn what a bear market is, how it starts, signs to watch, how long it lasts, smart investor strategies, and historical examples.
Beta
Beta explained in plain language. Learn what beta means in finance, how it is calculated, how to use it in portfolio decisions, and its limits. Examples and CAPM formula included.
Blockchain
A clear, simple guide to blockchain. Learn what blockchain is, how it works, common types, real uses, benefits, limitations, and how to get started.
Blue chip: Meaning, Examples, Risks, and How to Invest
Blue chip stocks are large, well-known companies with steady earnings and dividends. Learn what makes a stock blue chip, examples, risks, and how to invest.
Boglehead
Boglehead explained: the investing philosophy based on low-cost index funds, diversification, and long-term buy-and-hold. Simple steps and sample portfolios.
Bond
A clear, simple guide to what a bond is, how bonds work, key terms like coupon and yield, types of bonds, risks, and how to buy them.
Bottom-up investing
Bottom-up investing explained: what it is, how it works, key metrics to check, a step-by-step process, benefits and risks, and how it differs from top-down investing.
Broker: What It Means, Types, Fees, and How to Choose One
Learn what a broker is, common broker types, how brokers earn money, key differences from agents, regulation, and a simple checklist for choosing one.
Bull Market
Learn what a bull market is, how it starts, common signs, risks, and practical strategies for investors. Simple, clear guide with examples and action steps.
C
19 termsCapital Asset Pricing Model
A clear, simple guide to the Capital Asset Pricing Model. Learn the CAPM formula, what beta means, how to compute expected return, assumptions, limits, and a worked example.
Capital gains
A clear, practical guide to capital gains. Learn what capital gains are, how they are calculated, types, tax rules, examples, and simple strategies to reduce taxes.
Capital loss
A clear, simple guide to capital loss: what it is, realized versus unrealized losses, tax rules, loss harvesting, wash sale rule, and how to use losses to lower taxes.
Cash flow
Clear, simple guide to cash flow: what it is, why it matters, how to read a cash flow statement, common types, key metrics, and practical tips to improve cash flow for businesses and individuals.
Certificate of deposit (CD)
A clear, simple guide to certificates of deposit (CDs): how they work, types, pros and cons, interest, penalties, laddering, and when to use them.
Certified Financial Planner (CFP)
Clear, practical guide to what a Certified Financial Planner (CFP) is, how to become one, exam and experience rules, fees, fiduciary duty, and when to hire a CFP.
Chartered Financial Analyst (CFA) — What It Is, How to Earn It, and Why It Matters
CFA explained: what it is, exam levels, requirements, costs, study tips, careers, and whether it is worth it.
Collateral — Definition, Types, How It Works
Learn what collateral means, why lenders require it, common types, how it is valued, and what happens if a borrower defaults. Clear examples and practical tips for borrowers.
Commission
Commission explained: what it is, common types in finance, how it is calculated, examples, how it affects returns, and ways to reduce it.
Commodities
Learn what commodities are, the main types, how they trade, why they matter to the economy and investors, and the main risks and instruments used to buy and sell them.
Compound Annual Growth Rate (CAGR)
Learn what Compound Annual Growth Rate (CAGR) means, how to calculate it, when to use it, and common pitfalls. Simple formula, examples, Excel and Python tips.
Compounding
Compounding explained in plain language. Learn how compounding works, the key formulas, real examples, the Rule of 72, and how to use compounding to grow money over time.
Consumer Price Index (CPI)
The Consumer Price Index (CPI) measures changes in prices that consumers pay. This article explains what CPI is, how it is calculated, why it matters, and its limits in plain language.
Correlation
Learn what correlation means, how it is measured, and how investors use it to manage risk. Clear examples, formulas, and practical tips.
Cost basis
Cost basis explained in plain English. Learn what cost basis is, how to calculate it for stocks, real estate, gifts and inherited property, and why it matters for taxes.
Credit Default Swap
A clear, simple guide to credit default swaps. Learn what a CDS is, how it works, who uses it, basic pricing, risks, and why it mattered in 2008.
Credit history
Simple guide to credit history. Learn what credit history is, how it forms, how it affects loans, and clear steps to build or fix your credit.
Credit score
Learn what a credit score is, why it matters, how it is calculated, and simple steps to check and improve your score. Clear, practical advice anyone can use.
Cryptocurrencies
What cryptocurrencies are, how they work, key terms, risks, and how to get started safely. Clear, practical guide for beginners.
D
11 termsDay trading
Day trading explained: what it is, how it works, common strategies, tools you need, risks, rules, and practical steps to get started. Clear, simple guide.
Debt-to-income ratio
Clear explanation of debt-to-income ratio (DTI): what it is, how to calculate it, why it matters for loans and mortgages, and practical steps to improve your DTI.
Deductible
Learn what a deductible is, how insurance deductibles work, types, examples, and how to choose the right one. Clear, practical answers for health, auto, and home insurance.
Default
Default explained: what it means in finance, types of default, causes, consequences, and how to prevent or respond to one. Clear, practical guide for consumers, businesses, and investors.
Dependent (Tax and Financial Meaning)
Dependent explained: what it means for taxes and personal finance, who qualifies, the rules to claim someone, tax benefits, common mistakes, and a simple checklist to decide.
Depreciation
Depreciation explained simply: what it is, why it matters, main methods, examples, journal entries, and tax vs accounting differences.
Derivative
Learn what a derivative is in finance. Clear definitions, main types (forwards, futures, options, swaps), simple examples, uses, risks, and how pricing and settlement work.
Discretionary income
Learn what discretionary income means, how to calculate it, how it differs from disposable income, and practical ways to increase it. Clear examples and simple tips.
Dollar-cost averaging
Dollar-cost averaging is a simple investing method that spreads purchases over time to reduce timing risk. Learn how it works, when to use it, and step-by-step guidance.
Dow Jones Industrial Average (DJIA)
A clear, simple guide to the Dow Jones Industrial Average (DJIA): what it is, how it works, why it matters, and how investors use it. Easy to read and skimmable.
Down payment
What a down payment is, how it works for homes and cars, how much to save, and tips to lower costs and avoid private mortgage insurance.
E
8 termsEarnings per Share (EPS)
Earnings per Share (EPS) explained in plain language. Learn the formula, types, examples, limitations, and how investors use EPS to value stocks.
Efficient Market Hypothesis
Efficient Market Hypothesis explained in plain language. Learn the three forms, what they mean for investors, evidence for and against, and practical tips for choosing passive or active strategies.
Emerging market
What an emerging market is, how it differs from developed markets, key risks and indicators, and simple investing steps for investors.
Employee stock options
Clear, simple guide to employee stock options. Learn what they are, how they work, tax basics, and practical strategies with an easy example.
Equities
Equities explained in plain language: what they are, types, how they make money, risks, how to buy them, and basic valuation concepts.
Exchange-traded fund (ETF)
An easy guide to exchange-traded funds. Learn what an ETF is, how it works, types, benefits, risks, fees, taxes, and how to buy one.
Expense ratio
Learn what an expense ratio is, how it is calculated, typical ranges for funds, and how the expense ratio affects your investment returns. Simple examples and practical tips.
Exposure
F
7 termsFAANG Stocks
What FAANG stocks are, why they matter, who is in the group, how they affect markets, and how to think about investing in them.
Federal Reserve
Learn what the Federal Reserve is, how it works, its main tools, and how its actions affect inflation, interest rates, and everyday life. Clear and simple explanation.
Fee-only financial planner
Learn what a fee-only financial planner is, how they charge, why fiduciary duty matters, and how to choose one. Clear, practical guide for anyone needing unbiased financial advice.
Fiduciary
Learn what a fiduciary is, the main duties they owe, examples in finance and law, how a fiduciary differs from other advisors, signs of a breach, and steps to take if your fiduciary fails you.
Fixed Income — What It Means and How It Works
Fixed income means investments that pay regular interest, like bonds and CDs. Learn how coupons, yield to maturity, interest rate risk, credit risk, and duration affect returns. Simple examples and practical tips for investors.
Flexible spending account (FSA)
Learn what a Flexible Spending Account (FSA) is, how it works, eligible expenses, limits, carryover rules, and tips to maximize tax savings. Clear examples and common mistakes.
Futures
A clear, simple guide to futures contracts: what they are, how they work, why people use them, key risks, and a practical example. For traders, hedgers, and students.
G
3 termsGame theory
A clear, simple guide to game theory. Learn the core ideas: players, strategies, payoffs, Nash equilibrium, Prisoner's Dilemma, zero-sum vs non-zero-sum, repeated games, and practical uses in economics, politics, and everyday decisions.
Glide path
What a glide path is in finance, how it guides asset allocation over time, common designs, pros and cons, and how to pick one for retirement planning.
Gross Domestic Product (GDP)
Gross Domestic Product (GDP) measures a country's total economic output. Learn what GDP is, how it is calculated, its limits, and how to use it correctly.
H
4 termsHealth savings account (HSA) — A clear guide
Learn what a Health Savings Account (HSA) is, who can use one, tax benefits, eligible expenses, how to open one, common strategies, and mistakes to avoid. Simple, practical, and up to date.
Hedging
Hedging is a way to reduce financial risk by taking an offsetting position. This article explains what hedging is, why it matters, common methods, simple examples, costs, and a practical checklist for investors and businesses.
Housing bubble
A clear, simple guide to what a housing bubble is, how it forms, signs to watch, why it matters, and what buyers and investors can do. Includes history and quick checklist.
Hyperinflation
Hyperinflation explained: what it is, what causes it, real examples, how governments react, and practical steps to protect your money.
I
11 termsIncome statement
Learn what an income statement is, its parts, how to read one, and why it matters for businesses and investors. Clear examples and key ratios.
Index
A clear, simple guide to what an index is in finance. Learn how stock market indices work, how they are built, and how investors use them.
Index fund
What an index fund is, how it works, why investors use it, and how to pick one. Simple, practical guide for beginners and long term investors.
Inflation
Clear, simple guide to inflation: what it is, how it is measured, causes, effects, and practical ways to protect your money.
Initial public offering (IPO)
Learn what an initial public offering (IPO) is, why companies go public, how the process works, the main types of IPOs, and what investors should watch for. Clear, skimmable guide.
Insider Trading
Insider trading explained in simple terms. Learn the difference between legal and illegal insider trading, who counts as an insider, common examples, penalties, and how to avoid trouble.
Interest Rate
Clear, simple explanation of interest rate. Learn types, how to calculate simple and compound interest, why rates change, and how they affect loans, savings, and the economy.
Internal Rate of Return (IRR)
A clear, practical guide to Internal Rate of Return. Learn what IRR means, how to calculate it, how to use it in investment decisions, common pitfalls, and Excel tips.
Internal Revenue Service (IRS)
Learn what the Internal Revenue Service (IRS) is, what it does, how it affects individuals and businesses, and how to handle taxes, audits, notices, and payments. Clear, simple, and practical.
International Monetary Fund (IMF)
The International Monetary Fund (IMF) is a global financial institution that helps countries stabilize their economies, manage balance of payments, and promote growth. This article explains what the IMF does, how it works, common programs, criticisms, and why it matters to ordinary people.
Inverted Yield Curve
Learn what an inverted yield curve is, why it matters, how to read it, and what it usually signals for the economy and investors.
L
3 termsLiabilities
A clear guide to liabilities: what they are, types, how they appear on the balance sheet, key ratios, examples, and how they affect a company's financial health.
Liquidation
Liquidation explained in plain language. Learn what liquidation means, why it happens, the types, the process, who gets paid first, and alternatives like administration or receivership.
Liquidity
Liquidity explained in plain language. Learn types, measures, examples, risks, and how to improve liquidity for individuals and firms.
M
10 termsMacroeconomics
A clear, practical guide to macroeconomics. Learn what macroeconomics studies, key measures like GDP and inflation, policy tools, the business cycle, and why it matters for everyday life.
Management fees
A clear, simple guide to management fees. Learn where they appear, how they are calculated, typical rates, real examples, and practical ways to lower them.
Margin
Margin explained: what it means in business and investing, how to calculate different margins, examples, risks, and simple ways to improve margin. Clear definitions and formulas for gross, operating, net, and margin trading.
Market capitalization
Market capitalization explained simply. Learn what market cap means, how to calculate it, why it matters, its limits, and how investors use it.
Market volatility
Market volatility is how much prices move up and down. This article explains what causes it, how it is measured, what it means for investors, and simple ways to manage it.
Microeconomics
Clear, practical introduction to microeconomics. Learn the main ideas: supply and demand, opportunity cost, elasticity, market structures, externalities, and how these ideas affect everyday choices.
Monetary policy
Clear, simple guide to monetary policy: what it is, how central banks use it, its tools, goals, risks, and real world examples.
Monte Carlo Simulation
Learn what Monte Carlo simulation is, why it works, and how to use it in finance. Clear examples, simple math, and a short Python example for option pricing.
Mortgage
Learn what a mortgage is, how it works, types of mortgages, costs, and the loan process. Clear, practical guide for first-time homebuyers.
Mutual Fund
A clear, simple guide to mutual funds: what they are, how they work, types, benefits, risks, fees, and how to pick one. Easy to understand for beginners.
N
4 termsNegative sum games
Negative sum games are situations where all players lose value. Learn the definition, examples, causes, detection, and strategies to reduce harm. Clear, practical guide with real-world cases.
Net Present Value
Learn what Net Present Value (NPV) means, why it matters, how to calculate it, and how to use it to decide between projects. Simple steps, a worked example, and common pitfalls.
Net worth
Net worth explained simply. Learn what net worth is, how to calculate it, why it matters, and clear steps to improve your net worth with examples.
NYSE
The NYSE, or New York Stock Exchange, is the largest stock market in the world. This article explains what the NYSE is, how it works, who trades there, how companies list, trading hours, order types, and why it matters.
O
2 termsOptions
Options explained simply. Learn calls, puts, strike price, premium, expiration, uses, risks, and examples so you can understand how options work.
Over-the-counter (OTC)
A clear, practical guide to over-the-counter markets. Learn what OTC means, how it works, who trades OTC securities, and the risks and benefits.
P
6 termsPassive investing
Learn what passive investing means, how it works, the main types, benefits and risks, and simple steps to get started with low-cost index funds and ETFs.
Personal Finance
Learn the basics of personal finance: budgeting, saving, debt, investing, credit, and retirement. Practical steps to take control of your money.
Ponzi scheme
A clear, simple guide to Ponzi schemes: what they are, how they work, common red flags, famous examples, legal consequences, and how to protect yourself. Learn what to do if you suspect fraud.
Positive sum games
Learn what positive sum games mean, how they differ from zero-sum and negative-sum, and why they matter for finance and business. Practical examples, signs to look for, and how to create and capture gains.
Price to Earnings Ratio (P.E. ratio)
Learn what the Price to Earnings Ratio (P.E. ratio) is, how to calculate it, what it means, and how investors use it. Simple examples, limits, and a checklist for smart use.
Profit and loss statement
Learn what a profit and loss statement is, how to read one, and why it matters for businesses. Clear definitions, a simple example, key ratios, and steps to use P&L for better decisions.
Q
2 termsQuantitative easing
Quantitative easing explained in simple terms. Learn how central banks use QE, how it works, its goals, risks, history, and what investors watch.
Quantitative tightening
Quantitative tightening (QT) is when central banks reduce their balance sheets to remove liquidity. Learn how it works, why it matters, and what to watch.
R
7 termsRebalancing
Rebalancing explained: what it is, why it matters, simple methods, a clear example, and step by step guidance for investors.
Recession
A clear, simple guide to what a recession is, what causes one, how to spot the signs, and practical steps households and businesses can take to prepare.
Regression
A clear, practical guide to regression: what it is, how it works, key types, assumptions, common metrics, and a simple finance example. Designed for quick understanding and practical use.
REIT
A clear guide to REITs. Learn what a Real Estate Investment Trust is, how REITs work, the main types, key metrics, benefits, risks, tax basics, and how to invest.
Return on Investment (ROI)
Learn what Return on Investment (ROI) means, how to calculate it, real examples, limits of the metric, and when to use alternatives like NPV or IRR. Simple formulas and tips to improve ROI.
Roth Individual Retirement Account (Roth IRA)
A clear, practical guide to Roth IRAs: how they work, who can use them, contribution limits, tax rules, withdrawals, conversions, and smart strategies.
Rule of 72 — Quick way to estimate how long money takes to double
Learn the Rule of 72. See how to use it to estimate how long money takes to double, examples, accuracy, limits, and quick tips for investors and savers.
S
9 termsS&P 500
A clear, simple guide to the S&P 500: what it is, how it works, why it matters, how to invest, and its limits. Ideal for beginners and everyday investors.
Securities and Exchange Commission (SEC)
The Securities and Exchange Commission (SEC) is the U.S. regulator for securities markets. Learn what it does, how it protects investors, key filings like 10-K and S-1, and why it matters.
Security
Security (finance) explained in plain language. What a security is, main types like stocks and bonds, how markets work, risks, regulation, and a simple checklist for investors.
Sharpe Ratio
Learn what the Sharpe Ratio is, how to calculate it, and how to use it to compare investments. Clear examples, limits, and practical tips for investors.
Short Selling
Learn what short selling is, how it works, risks like unlimited losses and short squeezes, costs, and safer alternatives. Clear examples and a short checklist.
Spread
Spread in finance explained: what it is, types like bid-ask and yield spread, how to calculate, why it matters, and simple examples for traders and investors.
Stock
Learn what a stock is, the difference between common and preferred stock, how stocks create value, risks and rewards, and how to buy stocks. Simple, practical guide for beginners.
Supply and Demand
A clear, simple guide to supply and demand. Learn the law of supply and demand, equilibrium, shifts versus movements, and elasticity with real examples.
SWOT Analysis: How to Find Strengths, Weaknesses, Opportunities, and Threats
Clear, simple guide to SWOT analysis. Learn what it is, how to run one, examples, and common mistakes. Useful for business and finance decisions.
T
5 termsTax loss harvesting
Tax loss harvesting explained in plain English. Learn what it is, how it works, the wash sale rule, common strategies, risks, and a simple example you can use to decide when it makes sense.
Terminal Value
Terminal value is the value of a business beyond the forecast period in a DCF. Learn what it is, how to calculate it, example formulas, assumptions, and common mistakes.
Time value of money
Learn what the time value of money means, why it matters, key formulas (PV, FV, annuities, perpetuities), worked examples, and quick rules for making financial decisions.
Total Expense Ratio (TER)
A clear, practical guide to Total Expense Ratio (TER): what it measures, how it is calculated, what it includes and excludes, and why TER matters for your investment returns.
Trading
Trading explained simply. Learn what trading is, how it works, common markets and instruments, basic strategies, order types, risks, costs, and how to get started safely.
U
4 termsU.S. savings bonds
Learn what U.S. savings bonds are, how Series EE and Series I work, how to buy and redeem them, tax rules, pros and cons, and practical tips for using them as a safe place to save.
Unemployment rate
A clear, simple guide to the unemployment rate: what it means, how it is measured, who is counted, its limits, and why it matters for the economy and personal finance.
Unicorn
Unicorn explained: what a unicorn startup is, how valuations work, why they matter, risks and examples. Simple, clear guide for investors and founders.
Unsecured Loan
Learn what an unsecured loan is, how it works, who qualifies, rates and risks, and smart tips to apply. Clear, simple guide for everyday finance.
V
5 termsValuation
Valuation explained clearly: what it is, why it matters, main methods like discounted cash flow and comparables, common metrics, a simple example, and practical steps to value a company.
Value Investing
Value investing explained in plain terms. Learn the core ideas, key metrics, a simple checklist, risks, and steps to start investing in undervalued stocks.
VIX (CBOE Volatility Index)
Learn what the VIX is, how it measures expected stock market volatility, why it matters, and how traders use VIX futures and ETFs. Simple, practical guide for investors.
VT
VT is the Vanguard Total World Stock ETF. This article explains what VT is, how it works, its key facts, benefits, risks, and how investors use it as a simple global equity holding.
VTI
VTI is the Vanguard Total Stock Market ETF. Learn what it holds, fees, risks, tax facts, how to buy it, and who it suits. Clear, simple, and practical explanation.
W
1 termZ
3 termsZ-Test
Learn what a Z-test is, when to use it, how to calculate it, and how to interpret the result with clear examples and steps.
Zero-Coupon Bond: Simple Guide, Pricing, Risks, and Uses
Learn what a zero-coupon bond is, how it works, how to price it, tax and risk factors, and when to use one. Clear examples and quick checklist.
Zero-sum games
What zero-sum games are, clear examples, how to analyze them, and why they matter in economics, games, and strategy.