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Stock market glossary
The terms used across this site, explained in plain English with why each one matters.
Valuation
- Enterprise Value (EV)Market cap plus total debt minus cash.
- Market CapitalizationShare price multiplied by the total number of shares outstanding.
- P/E RatioShare price divided by earnings per share over the last twelve months.
- Price-to-Book Ratio (P/B)Market capitalization divided by shareholders' equity on the balance sheet.
- Price-to-Sales Ratio (P/S)Market capitalization divided by the last twelve months of revenue.
Fundamentals
- Consensus EstimateThe average of analysts' forecasts for a company's upcoming EPS.
- EBITDAEarnings before interest, taxes, depreciation and amortization.
- Earnings Per Share (EPS)Net income divided by the number of shares outstanding.
- Earnings SurpriseThe difference between reported EPS and the analysts' consensus estimate.
- Free Cash Flow (FCF)Cash from operations minus capital expenditures.
Quality
- Current RatioCurrent assets divided by current liabilities.
- Debt-to-Equity RatioTotal debt divided by shareholders' equity.
- Net Profit MarginNet income as a percentage of revenue.
- Return on Equity (ROE)Net income divided by shareholders' equity.
Income
- Dividend YieldAnnual dividends per share divided by the share price.
- Ex-Dividend DateThe first trading day on which a buyer of the stock will NOT receive the next dividend.
- Payout RatioDividends per share divided by earnings per share.
- Record DateThe date on which a company checks its books to see who is owed the dividend.
- Share BuybackA company purchasing its own shares in the market.
SEC Filings
- Form 10-KThe annual report every US public company files with the SEC.
- Form 10-QThe quarterly report US public companies file for the first three quarters of each fiscal year.
- Form 4 (Insider Transactions)The filing officers, directors and 10% owners must make within two business days of trading their company's stock.
- Form 8-KA 'current report' a company must file within four business days of a material event.
- Insider Trading (Legal)Company insiders buying or selling their own company's stock and reporting it to the SEC.
- Proxy Statement (DEF 14A)The document sent to shareholders before the annual meeting.
- Regulation FDThe SEC rule requiring companies to share material information with all investors at the same time.
- Rule 10b5-1 Trading PlanA pre-arranged plan that lets insiders trade on a fixed schedule.
- Schedule 13DA filing required when an investor acquires more than 5% of a company with intent to influence it.
Technical Analysis
- Average True Range (ATR)The average daily trading range, including overnight gaps, usually over 14 days.
- Bollinger BandsA 20-day moving average with bands two standard deviations above and below it.
- BreakoutA close beyond a defined support or resistance level, ideally on rising volume.
- Chart PatternA recognisable shape in price history — triangles, flags, head and shoulders — that traders use to anticipate the next move.
- Death CrossThe 50-day moving average crossing below the 200-day moving average.
- Golden CrossThe 50-day moving average crossing above the 200-day moving average.
- MACDMoving Average Convergence Divergence: the 12-day EMA minus the 26-day EMA, with a 9-day signal line.
- Moving AverageThe average closing price over a set number of days, recalculated each day.
- Relative Strength Index (RSI)A 0–100 momentum oscillator comparing recent gains with recent losses.
- Support and ResistancePrice zones where buying (support) or selling (resistance) has repeatedly stopped a move.
Market
- Advance-Decline LineA running total of advancing stocks minus declining stocks each day.
- ETF (Exchange-Traded Fund)A fund that holds a basket of securities and trades on an exchange like a stock.
- Market BreadthHow many stocks are participating in a market move.
- S&P 500An index of 500 of the largest US companies, weighted by market capitalization.
- SeasonalityRecurring patterns in returns at particular times of the year.
- Sector RotationMoney moving from one group of industries to another as the economic cycle and sentiment change.
- VIX (Volatility Index)The market's expectation of S&P 500 volatility over the next 30 days, derived from option prices.
Risk
- BetaHow much a stock tends to move for each 1% move in the overall market.
Investing
- CAGRCompound annual growth rate: the steady yearly rate that turns a starting value into an ending value.
- Compound InterestEarning returns on your previous returns as well as on your original money.
- Dollar-Cost AveragingInvesting a fixed amount at regular intervals regardless of price.