A
Ask Price
TradingThe lowest price a seller is currently willing to accept for a share. Buying 'at market' fills at the ask price.
B
Bear Market
MarketsA period in which a broad market index falls 20% or more from a recent high, often accompanied by widespread pessimism.
Beta
RiskA measure of a stock's volatility relative to the overall market. A beta above 1 means the stock tends to move more than the market.
Bid Price
TradingThe highest price a buyer is currently willing to pay for a share. Selling 'at market' fills at the bid price.
Blue Chip Stock
StocksShares of large, financially stable, well-established companies with a long history of reliable performance.
Bond
Fixed IncomeA loan made by an investor to a borrower (often a government or corporation) that pays periodic interest and returns principal at maturity.
Bull Market
MarketsA sustained period of rising prices in a market or asset, generally accompanied by investor optimism.
C
Capital Gain
TaxesThe profit realized when an investment is sold for more than its purchase price. Taxed differently depending on holding period.
Compound Interest
FundamentalsInterest calculated on both the initial principal and the accumulated interest from previous periods — growth on growth.
D
Dividend
IncomeA portion of a company's earnings distributed to shareholders, typically paid quarterly in cash or additional shares.
Dividend Yield
IncomeAnnual dividend payments per share divided by the current share price, expressed as a percentage.
Dollar-Cost Averaging
StrategyInvesting a fixed amount of money at regular intervals regardless of price, which averages out the purchase price over time.
E
ETF (Exchange-Traded Fund)
FundsA fund that holds a basket of assets (stocks, bonds, etc.) and trades on an exchange like an individual stock.
Expense Ratio
FundsThe annual fee a fund charges investors, expressed as a percentage of assets, covering management and operating costs.
I
Index Fund
FundsA fund designed to track the performance of a specific market index, such as the S&P 500, typically at low cost.
Inflation
EconomyThe rate at which the general level of prices for goods and services rises, eroding purchasing power over time.
IPO (Initial Public Offering)
StocksThe first sale of a private company's shares to the public, after which the stock trades on an exchange.
L
Limit Order
TradingAn order to buy or sell a security only at a specified price or better — it may not execute if the price isn't reached.
Liquidity
MarketsHow easily an asset can be bought or sold without significantly affecting its price. Highly traded stocks are highly liquid.
M
Market Capitalization
FundamentalsThe total market value of a company's outstanding shares, calculated as share price multiplied by total shares.
Market Order
TradingAn order to buy or sell a security immediately at the best currently available price.
Mutual Fund
FundsA pooled investment vehicle priced once per day at net asset value, managed actively or passively by a fund company.
P
P/E Ratio (Price-to-Earnings)
ValuationA stock's share price divided by its earnings per share — a common, though imperfect, valuation metric.
Portfolio
FundamentalsThe complete collection of investments held by an individual or institution, including stocks, bonds, cash, and other assets.
R
Rebalancing
StrategyThe process of buying or selling assets to bring a portfolio back to its target allocation after market movements shift it.
Recession
EconomyA significant, widespread decline in economic activity lasting more than a few months, often defined as two consecutive quarters of negative GDP growth.
REIT (Real Estate Investment Trust)
Real EstateA company that owns or finances income-producing real estate, allowing investors to gain real estate exposure without owning property directly.
Risk Tolerance
StrategyAn investor's ability and willingness to endure declines in the value of their investments in pursuit of higher returns.
S
Sector
MarketsA grouping of companies that operate in the same broad segment of the economy, such as Technology or Healthcare.
Short Selling
TradingBorrowing shares to sell them with the expectation of buying them back later at a lower price, profiting from a decline.
Stock Split
StocksWhen a company increases its number of outstanding shares by issuing more shares to current holders, lowering the price per share proportionally.
T
Tax-Loss Harvesting
TaxesSelling investments at a loss to offset capital gains taxes owed on other investments, while maintaining overall portfolio strategy.
Ticker Symbol
TradingA unique series of letters assigned to a security for trading purposes, such as AAPL for Apple Inc.
V
Volatility
RiskThe degree of variation in a security's price over time. Higher volatility means larger and more frequent price swings.
Y
Yield Curve
Fixed IncomeA line plotting interest rates of bonds with equal credit quality but differing maturity dates, used as an economic indicator.