Stock Market Terms Explained Simply

Bull markets, bear markets, P/E ratios, short selling, options โ€” the stock market has a language of its own. Here's a plain-English glossary of the terms you'll actually encounter.

2025-05-10 ยท 7 min read

Nothing makes investing more intimidating than the jargon. Once you know the vocabulary, a lot of what sounds complex turns out to be straightforward. Here are the terms you'll encounter most often, explained without the fluff.

Market Directions

Bull market
A prolonged period of rising prices, typically defined as a 20%+ rise from recent lows. Investor sentiment is optimistic. "Bullish" means you expect prices to rise.
Bear market
A prolonged period of falling prices, typically a 20%+ drop from recent highs. Sentiment is pessimistic. "Bearish" means you expect prices to fall.
Correction
A 10โ€“20% decline from recent highs. Less severe than a bear market. Corrections happen regularly โ€” about once a year on average โ€” and are considered healthy.
Rally
A strong upward move in price, often occurring within a broader downtrend. A "dead cat bounce" is a short-lived rally in a downtrend that doesn't signal a real recovery.

Valuation Metrics

P/E Ratio (Price-to-Earnings)
The share price divided by annual earnings per share. A P/E of 20 means you're paying ยฃ20 for every ยฃ1 of annual profit. Higher P/E = more expensive relative to earnings. The S&P 500 average is around 20โ€“25.
P/S Ratio (Price-to-Sales)
Share price divided by revenue per share. Useful for companies that aren't yet profitable (common in tech growth stocks).
Market Cap (Market Capitalisation)
Total value of all a company's shares. Share price ร— total shares outstanding. Apple's market cap exceeded $3 trillion in 2024.
EPS (Earnings Per Share)
Net profit divided by number of shares. A rising EPS generally means a growing, profitable business.
Book Value
The net asset value of a company (assets minus liabilities). The P/B (price-to-book) ratio compares market price to book value.

Trading Mechanics

Long position
You own the asset and profit when it rises. Most retail investors are always "long."
Short selling
Borrowing shares to sell now, hoping to buy them back cheaper later and pocket the difference. Profit from falling prices, but losses are theoretically unlimited if the price keeps rising.
Limit order
An instruction to buy/sell only at a specific price or better. Protects you from bad fills in volatile markets.
Market order
An instruction to buy/sell immediately at the current price. Guaranteed to execute, but the price you get may differ from what you saw.
Stop-loss
An automatic sell order triggered when price falls to a specified level. Limits downside without requiring you to watch the screen constantly.
Liquidity
How easily you can buy or sell an asset without moving the price. Large-cap stocks are highly liquid. Small-cap stocks and most crypto are less so.

Returns and Risk

Volatility
How much an asset's price swings. High volatility = big moves in both directions. Measured statistically as standard deviation or beta.
Beta
How much an asset moves relative to the broader market. Beta of 1 = moves with the market. Beta of 2 = twice as volatile. Beta below 1 = less volatile than the market.
Dividend yield
Annual dividend divided by share price, expressed as a percentage. A ยฃ1 dividend on a ยฃ20 stock = 5% yield.
Drawdown
The peak-to-trough decline of a portfolio or asset. A portfolio that falls from ยฃ100,000 to ยฃ70,000 has a 30% drawdown.

Reading Signals

Now that you know the vocabulary, you're better placed to interpret market analysis. When Indikators generates a BUY/SELL/HOLD signal for a stock, it factors in many of these metrics โ€” including momentum, P/E relative to sector, and volatility indicators โ€” to give you a structured, explainable recommendation. Browse any symbol's signal history to see how past calls performed.

Not financial advice. This article is for educational purposes only. Always do your own research and consult a qualified financial adviser before making investment decisions.

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