“Bull” and “bear” are the two words Wall Street uses to describe which direction the market is heading — up or down — and each brings its own investor psychology, risks and strategy.
Here’s what actually separates a bull market from a bear market, how the terms extend to chart patterns like flags and traps and how to adjust your approach depending on which one you’re in.
A bull market describes a sustained period of rising prices, typically defined as a 20% or greater climb from a recent low. Bull markets are associated with investor optimism, economic growth and rising confidence — and historically, they’ve been the market’s default state, lasting far longer on average than bear markets.
What is a bear market?
A bear market is the reverse: a sustained decline, commonly defined as a drop of 20% or more from a recent high, typically across a broad index like the S&P 500.(1) Bear markets tend to coincide with economic slowdowns, rising unemployment or a specific shock to the system, and they bring more pessimistic, risk-averse investor sentiment.
Hot tip: The 20% line is a convention, not a law
There’s no regulator that officially declares a bull or bear market. The 20% threshold is simply the standard the financial industry has settled on to distinguish a bear market from an ordinary correction (typically a 10-20% dip), and it’s applied after the fact once an index has moved that far from its recent high or low.
Bull flag vs. bear flag
Not to be confused with bull and bear markets, a “flag” is a short-term chart pattern technical traders watch for. A bull flag forms after a sharp price increase, when the price consolidates in a narrow downward-sloping channel before (traders hope) continuing higher. A bear flag is the mirror image: it forms after a sharp decline, consolidates in a narrow upward-sloping channel, and traders watch for the decline to resume. Both are considered continuation patterns — a bet that the prior trend picks back up once the pattern breaks.
Bull trap vs. bear trap
A bull trap is a false signal that a decline has reversed: the price breaks above a resistance level, luring in buyers, then falls back down and traps them in a losing position. A bear trap works the opposite way — the price breaks below a support level, triggering sellers or short positions, then reverses higher and traps them on the wrong side of the move. Both patterns are a reminder that a single breakout isn’t confirmation of a new trend.
How to invest in a bull market vs. a bear market
Bull market strategies
Stay invested. Riding out a bull market tends to reward patience over trying to time the top.
Keep contributing if you can. Continuing to buy through a decline, rather than stopping, means picking up shares at lower prices.
Avoid panic selling. Locking in losses by selling during the decline is one of the most common ways investors turn a paper loss into a permanent one.
More advanced or risk-tolerant investors sometimes use short selling to try to profit directly from a bear market decline, though it carries meaningfully higher risk than simply staying invested or shifting toward defensive holdings.
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See which platforms fit both bull market growth investing and bear market defensive strategies.
A bull market rewards staying invested and leaning into growth, while a bear market rewards diversification, quality and discipline over panic. Since nobody can reliably call the top or bottom of either, the more durable approach is building a portfolio that can hold up in both — rather than trying to switch strategies each time the label changes.
Frequently asked questions
There's no official regulator that declares either. The commonly used convention is a 20% or greater move from a recent low (bull market) or high (bear market) in a broad index, though bull markets in particular don't have a universally agreed-upon threshold.
Bull markets have historically lasted much longer on average — often years — while bear markets tend to be shorter, typically resolving within a year or two, though both can vary significantly.
A correction is a decline of roughly 10-20% from a recent high. A bear market is the more severe case — a decline of 20% or more.
No. Bull and bear markets describe a sustained, broad market trend over months or years. Bull and bear flags are short-term chart patterns technical traders use to gauge whether a much shorter price move is likely to continue.
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Matt Miczulski is an investments editor and market analyst at Finder. With over 450 bylines, Matt dissects and reviews brokers and investing platforms to expose perks and pain points, explores investment products and concepts and covers market news, making investing more accessible and helping readers to make informed financial decisions.
Before joining Finder in 2021, Matt covered everything from finance news and banking to debt and travel for FinanceBuzz. His expertise and analysis on investing and other financial topics has been featured on Yahoo Finance, CBS, MSN, Best Company and Consolidated Credit, among others. Matt holds a BA in history from William Paterson University.
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