Bull vs Bear Market + 50 Stock Market Terms Every Investor Should Know (2026)

A bull market is a sustained period of rising stock prices and investor optimism, while a bear market is a prolonged fall of roughly 20% or more from recent highs, marked by fear and selling. Knowing the difference—and the language traders use around it—is the first real step to investing with confidence. This guide explains bull vs bear markets, corrections vs crashes, order types, valuation ratios and derivatives basics, and gives you a complete A–Z glossary of 50 essential stock market terms every Indian investor should know.

Bull market vs bear market: what’s the difference?

If you follow business news in India, you will hear “the markets are bullish” or “Dalal Street turned bearish” almost every week. These two words describe the overall direction and mood of the market.

A bull market is a phase where prices are generally rising over an extended period—weeks, months, or even years—and investors are optimistic. Demand for shares outpaces selling, indices like the Sensex and Nifty trend upward, and new highs are common. The animal imagery helps: a bull attacks by thrusting its horns upward.

A bear market is the opposite—a sustained decline, commonly defined as a fall of about 20% or more from a recent peak, accompanied by pessimism and heavy selling. A bear swipes its paws downward. Between the two extremes, markets can also move sideways (range-bound), neither clearly rising nor falling.

How investors behave in each phase

In a bull market, confidence feeds itself: rising prices attract more buyers, IPO activity picks up, and even loss-making companies can command rich valuations. The risk is overpaying near the top. In a bear market, fear dominates: investors sell to avoid further losses, quality stocks get marked down alongside weak ones, and the danger is panic-selling at the bottom and missing the eventual recovery.

Two related terms you will meet: a bull is an investor who expects prices to rise (bullish), and a bear is one who expects them to fall (bearish). You can be bullish on one stock and bearish on another at the same time.

Correction vs crash vs bear market

Not every fall is a crash, and not every dip is a bear market. The difference is mostly about size and speed.

• Dip / pullback: a small, short decline—often a few percent—within an ongoing uptrend.
• Correction: a decline of roughly 10% or more from a recent high. Corrections are common and can be healthy, cooling down overheated prices.
• Bear market: a deeper, more prolonged decline of about 20% or more.
• Crash: a sudden, very sharp fall over a very short period (a day or a few days), usually triggered by panic, a shock event, or a global trigger.

These thresholds are widely-used conventions, not legal definitions. A correction can deepen into a bear market, and a crash can occur within either phase. What matters for you as an investor is to recognise that volatility is normal and to avoid making permanent decisions based on temporary moves.

Order types: how you actually buy and sell

When you place a trade through a broker app, you choose an order type. Picking the right one controls the price you pay and the risk you take. These are the four most common types on Indian exchanges (NSE and BSE).

A simple example

Suppose a stock trades at ₹100. A market order buys right now at whatever the going price is. A limit order at ₹98 buys only if the price comes down to ₹98 or lower. A stop-loss at ₹90 automatically tries to sell if the price falls to ₹90, limiting your downside. Beginners are usually safest using limit orders for entries and stop-losses to manage risk.

Valuation terms: is a stock cheap or expensive?

A high share price does not mean a stock is “expensive,” and a low price does not mean it is “cheap.” Valuation ratios compare price to the company’s underlying business so you can judge value fairly.

The ratios that matter most

• P/E (Price-to-Earnings): share price ÷ earnings per share. It tells you how many rupees investors pay for one rupee of annual profit. A higher P/E implies higher growth expectations—or overvaluation.
• EPS (Earnings Per Share): the company’s net profit divided by the number of shares. Rising EPS over time is a good sign.
• P/B (Price-to-Book): price compared to the company’s net asset (book) value per share. Often used for banks and asset-heavy businesses.
• ROE (Return on Equity): net profit as a percentage of shareholders’ equity—how efficiently the company turns owners’ money into profit.
• Dividend Yield: annual dividend per share ÷ share price, shown as a percentage. It tells you the cash return you get just from dividends.
• Market Capitalisation: share price × total shares. It defines company size: large-cap, mid-cap and small-cap.

One important caveat: ratios are most useful relative to peers and to a company’s own history. A P/E of 30 may be cheap for a fast-growing tech company and expensive for a slow-growing utility. Always compare like with like.

Derivatives basics: futures and options (F&O)

A derivative is a contract whose value is derived from an underlying asset—a stock, an index like Nifty, a commodity or a currency. In India, the two most traded equity derivatives are futures and options, together called F&O. They are powerful but risky, and are best understood before they are ever traded.

Futures

A futures contract is an agreement to buy or sell an asset at a fixed price on a future date. Both parties are obligated to honour it. Futures are traded in fixed lot sizes and use leverage (margin), meaning you control a large position with a smaller upfront amount—which magnifies both gains and losses.

Options

An option gives the buyer the right, but not the obligation, to buy or sell at a set strike price before expiry, for a fee called the premium.

• Call option: the right to buy. Buyers profit if the price rises.
• Put option: the right to sell. Buyers profit if the price falls.

An option buyer’s loss is limited to the premium paid, while option sellers (writers) take on much larger, sometimes unlimited, risk in exchange for the premium.

50 stock market terms every investor should know (A–Z)

Bookmark this table. These are 50 of the most useful stock market terms in India, in plain English, arranged alphabetically.

How to use these terms as a beginner

Vocabulary is a means, not an end. Here is a sensible order in which these concepts become useful as you start investing in India:

1. Set up: open a Demat and trading account with a SEBI-registered broker.
2. Understand the market: learn what an index, Sensex and Nifty represent, and the meaning of bull and bear phases.
3. Start small and regular: a SIP into a diversified mutual fund or ETF teaches discipline and reduces timing risk.
4. Learn to evaluate: use fundamental terms like P/E, EPS, ROE and market cap before buying individual stocks.
5. Manage risk: use limit orders and stop-losses, and keep a diversified portfolio.
6. Approach advanced tools last: only consider F&O after you fully understand the risks.

Frequently asked questions

Disclaimer: This article is for educational purposes only and is not investment/financial advice. Read all scheme/offer documents and consult a SEBI-registered adviser where relevant.