Bull vs. Bear Market: What's the Difference?

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A bull market is a sustained rise in prices across a market, usually alongside a growing economy and confident investors. A bear market is a sustained decline, conventionally defined as a drop of 20% or more from a recent high, usually alongside a slowing economy and fearful investors. The same idea applies to people. You are bullish if you expect prices to rise and bearish if you expect them to fall. Bullish vs. bearish describes a view about where prices are headed. Bull vs. bear market describes what prices have actually done over an extended period.

Neither condition lasts forever. The U.S. stock market has trended upward over long stretches of its history, so bear markets have been periodic interruptions in a longer upward path: not the normal state of affairs, but a regular one.

Bull vs. Bear Market at a Glance

What Is a Bull Market?

A bull market is a period in which prices rise steadily and investors expect the uptrend to continue. In stocks, that means share prices across a broad index such as the S&P 500 are climbing over months or years, not just for a few strong sessions. The term can also be applied to bonds, real estate, commodities, currencies or crypto assets, but it is used most often for stock markets.

There is no single official definition of a bull market. A common convention says a new bull market begins once an index has risen 20% from its bear market low. Others prefer to call a new bull market only once the index has recovered to a new all-time high. The two definitions can give different starting dates for the same recovery, which is why you sometimes see disagreement about whether a bull market has “officially” begun.

During bull markets, the broader economy is usually healthy. Employment tends to be high, consumers are spending, and companies are reporting growing profits. Investors are willing to pay more for each dollar of earnings because they expect those earnings to keep growing.

What Causes Bull Markets?

Bull markets usually rest on a combination of fundamentals, policy and psychology.

Economic growth. When gross domestic product (GDP), employment and consumer spending are rising, businesses sell more and earn more. Higher earnings raise the value investors place on shares and increase demand for stocks.

Accommodative monetary policy. Central banks such as the Federal Reserve can lower interest rates to support growth. Cheaper borrowing encourages households and businesses to spend and invest, which supports corporate revenue. Lower rates also reduce the yield investors can earn on cash and bonds, which makes stocks relatively more attractive.

Sentiment and momentum. Strong earnings reports, new technologies and positive news can build optimism. As more people buy because prices have been rising, their buying pushes prices higher still, which draws in more buyers. This feedback loop can extend a bull market as long as the underlying conditions hold up. It can also push prices beyond what fundamentals justify, a state former Fed Chair Alan Greenspan famously called “irrational exuberance” in 1996.

What Is a Bear Market?

A bear market is a prolonged decline in prices accompanied by widespread pessimism. The standard threshold is a fall of 20% or more from a recent high. Falling prices make investors expect further losses, and that expectation leads to more selling, which reinforces the decline.

Bear markets often coincide with economic slowdowns or recessions. As demand weakens, companies cut costs and lay off workers, unemployment rises, and earnings fall. But the link is not automatic. Some bear markets have occurred without a recession, and some recessions have produced only modest stock declines.

A smaller drop has its own name. A correction is generally described as a decline of 10% to 20% from a recent high. Corrections occur within bull markets and do not necessarily signal the end of one. A drop that reaches 20% crosses into bear market territory.

How the 20% Threshold Works

The 20% figure is measured from the peak to the low point, usually using an index’s closing values rather than intraday moves.

Hypothetical example: an index closes at a record 5,000 points.

• A 20% decline from that peak would take it to 4,000 (5,000 × 0.80). If the index closes at 4,000 or below, it has entered a bear market under the convention.
• Suppose the index bottoms at exactly 4,000. A 20% rise from that low brings it to 4,800 (4,000 × 1.20). Under the “20% off the low” definition, a new bull market has begun, even though the index is still 4% below its old record.
• Because a 20% loss requires a 25% gain to fully recover (4,000 × 1.25 = 5,000), the index must rise further before it reaches a new high.

That asymmetry between percentage losses and the gains needed to recover them is why deep bear markets can take longer to recover from than their duration suggests.

Two more points follow from the mechanics. First, the start and end dates of bull and bear markets are assigned after the fact. On the day an index peaks, nobody knows it is the peak; the bear market is dated back to that high once the 20% decline arrives. Second, the threshold is a convention, not a law of markets. A 19% decline and a 21% decline can feel identical to an investor, but only one is labeled a bear market.

What Causes Bear Markets?

A weakening economy. Falling GDP, rising unemployment and reduced consumer spending point to lower corporate earnings. Investors who expect profits to shrink sell shares in anticipation, and prices fall.

Tighter monetary policy. When inflation runs high, central banks raise interest rates to cool demand. Higher borrowing costs weigh on spending and investment, raise companies’ costs and make bonds and cash more competitive with stocks. Periods of high inflation and rising rates have preceded several bear markets.

External shocks. Wars and geopolitical tensions, natural disasters, financial crises and pandemics introduce sudden uncertainty. Investors may shift money into assets they view as safer, such as government bonds or gold, causing sharp drops in stocks.

Feedback loops. Falling prices reduce household wealth, which can reduce spending, which weakens the economy and earnings further. Investors who bought on margin (with borrowed money) may receive margin calls and be forced to sell, adding pressure regardless of the underlying value of what they hold.

Key Differences Between Bull and Bear Markets

Direction of prices is the defining difference, but bull and bear markets also differ in how buyers and sellers behave, what investors feel and what the economy is doing.

Supply and Demand for Securities

In a bull market, demand for securities is strong and supply is weak. Many investors want to buy and relatively few want to sell, so buyers compete for available shares and prices rise.

In a bear market, the balance flips. More holders want to sell than there are buyers willing to take their shares at current prices, so prices fall until enough buyers appear.

Investor Psychology

Because prices reflect what investors collectively believe about the future, psychology shapes both phases.

In bear markets, the self-reinforcing cycle runs in reverse. Falling prices shake confidence, worried investors move money into bonds or savings accounts, and that selling pushes prices lower. This is one reason markets can overshoot in both directions, rising well above or falling well below what economic data alone would suggest.

Changes in Economic Activity

Listed companies are part of the broader economy, so the stock market and the economy are closely linked, though they do not move in lockstep. In bear markets tied to weakening economies, consumers spend less, many businesses struggle to grow profits, and lower profits reduce what investors will pay for shares.

The timing differs, though. Stock prices tend to move ahead of the economy because they price in expectations. A bear market may begin while economic data still look solid, and a new bull market may start while the economy is still contracting.

Gauging Market Changes

Whether a market is bullish or bearish depends on its performance over an extended period, not its reaction to a single event. A sharp one-day drop on bad news is not a bear market, and a strong week is not a bull market.

Besides corrections, several other patterns are easy to confuse with the two main phases:

• Bear market rallies: sharp but temporary rebounds within a longer decline. They can be large enough to look like a recovery before prices resume falling.
• Bear traps and bull traps: price moves that suggest a trend reversal and then fail. A bear trap lures traders into betting on further declines just before prices rise; a bull trap lures buyers in just before prices fall.
• Flat or sideways markets: periods in which up and down moves largely cancel out, leaving prices near where they started. Not every long stretch is either bull or bear.

Analysts also distinguish secular trends, which can last a decade or more, from cyclical trends lasting months to a few years. A cyclical bear market can occur inside a longer secular bull market, and vice versa.

Bullish and Bearish as Investor Views

Calling someone bullish on a stock means they expect it to rise; bearish means they expect it to fall. Being bullish is neither good nor bad in itself: it is a forecast, and its value depends on whether it turns out to be right and how much risk the investor takes to act on it.

These views can apply at any level:

• A single stock: an investor can be bullish on one company during a bear market if they expect its earnings to hold up, or bearish on a stock in a bull market if they think it is overvalued.
• A sector or asset class: someone might be bullish on energy and bearish on technology at the same time, or bullish on stocks and bearish on bonds.
• Technical analysis: chart patterns and indicators are labeled bullish or bearish depending on the price direction they are thought to signal. A “double bottom” is read as a bullish reversal pattern; a “head and shoulders” top is read as bearish.
• Positioning: a bullish trader might buy shares or call options, while a bearish trader might sell holdings, short sell or buy put options.

The terms also appear as nouns. “The bulls” are investors betting on rising prices and “the bears” are those betting on falling prices. Commentary about bulls and bears “fighting” over a stock describes buyers and sellers disagreeing about its value.

Where Do the Terms “Bull” and “Bear” Come From?

The most common explanation is the way each animal attacks. A bull thrusts its horns upward, matching rising prices. A bear swipes its paws downward, matching falling prices.

Another explanation traces “bear” to 18th-century London, where traders known as bearskin jobbers were said to sell bearskins they did not yet own, betting that the price would fall before they had to buy and deliver them. That practice resembles modern short selling, and “bear” became a name for someone betting on a decline. “Bull” may have been paired with it partly because bull-baiting and bear-baiting were both familiar spectacles at the time. These origins are traditional explanations rather than settled history.

How Long Do Bull and Bear Markets Last?

Bull markets have historically lasted longer than bear markets. One tally of the S&P 500 since 1957, when the index expanded to 500 companies, counts 13 bull markets and 13 bear markets over that period. In that count, bull markets have averaged about 4.4 years, while bear markets have averaged less than one year.

Averages hide wide variation. The bull market that followed the 2008 financial crisis ran from 2009 to early 2020, more than a decade, before the COVID-19 sell-off ended it. The bear market around the financial crisis lasted about 17 months, from October 2007 to March 2009. The 2020 bear market, by contrast, lasted only weeks before stocks began a rapid recovery.

How Do Bull and Bear Markets Affect Stock Returns?

In the same historical count of S&P 500 cycles, bull markets have produced average gains of about 151%, while bear markets have produced average losses of about 32%. Because bull markets have lasted much longer and gained much more than bear markets have lost, a broad U.S. stock index has risen over long periods despite repeated declines.

Those averages are for an index, not for any one investor or stock. Individual results depend on when an investor bought and sold, what they held and whether they stayed invested. Single stocks can fall far more than an index and may never recover.

The same asymmetry matters here: a 32% decline needs a gain of roughly 47% to get back to even (1 ÷ 0.68 ≈ 1.47). Investors who sell near the bottom lock in the loss and miss part of the recovery that historically has followed.

How to Invest in a Bull Market

Rising markets offer the chance for substantial gains, but they also tempt investors to take on more risk than they realize. Common approaches include:

Growth stocks. Companies expected to grow revenue and earnings faster than average often perform well during economic expansions. Sectors associated with growth include technology, biotechnology and consumer discretionary.

Tactical asset allocation. Some investors temporarily overweight asset classes or sectors expected to outperform in the current environment, such as cyclical stocks whose results are closely tied to the economic cycle (for example, industrials, travel or homebuilders). This requires a view on where the cycle is headed and a plan for reversing the tilt.

Momentum investing. This approach buys assets that have shown strong recent performance on the expectation that the trend continues in the short term, often using technical indicators to spot and time entries. Momentum can amplify gains in a rising market and can reverse quickly when the trend breaks.

Diversification. Even in a bull market, some sectors lag or suffer corrections. Holding a mix of stocks across industries, along with bonds and possibly international investments, cushions a portfolio against an unexpected downturn. Rebalancing, which means trimming assets that have grown beyond their target weight, keeps a portfolio from becoming riskier just because one part has surged.

Signs a Bull Market May Be Topping

Nobody can reliably call the peak, but several signals have tended to appear near market tops.

Euphoria and speculation. When prices surge well beyond fundamental values, initial public offerings multiply, and new investors pile in chasing quick gains, the market may be overheating.

Divergence from fundamentals. Stocks that keep rising while GDP growth slows, earnings decline or unemployment climbs suggest the rally is losing support.

Rising inflation and interest rates. Central banks that raise rates to fight inflation can slow the economy and trigger a correction or bear market.

Narrowing market breadth. When an index keeps climbing but fewer stocks are participating, with gains concentrated in a handful of large companies, the advance may be fragile.

Technical patterns. Double tops, head-and-shoulders formations and bearish moving average crossovers (such as a short-term average falling below a long-term one) are read by technical analysts as signs of a possible reversal.

Speculative Bubbles

A bubble is a bull market taken to an extreme, in which prices rise far beyond what fundamentals support. Economist Hyman Minsky described a sequence of stages that bubbles tend to pass through:

1. Displacement. Something new captures investors’ attention: a breakthrough technology such as the internet in the 1990s, or a policy shift such as very low interest rates. It convinces people that conditions have fundamentally changed.
2. Boom. Early investors make money, others notice and pile in, and prices rise faster as fear of missing out spreads.
3. Euphoria. Caution disappears. Traditional valuation methods are dismissed in favor of the belief that prices will keep rising, and phrases like “new paradigm” become common.
4. Profit-taking. More experienced investors begin quietly selling while most participants are still enthusiastic.
5. Panic. A trigger, such as bad news or simply running out of new buyers, starts a sell-off. Investors who borrowed to buy are forced to sell at any price, which accelerates the decline.

Bubbles are easier to identify after they burst than while they are inflating. The stages describe a pattern, not a timetable; euphoria can last much longer than skeptics expect.

How to Invest in a Bear Market

Bear markets call for a more defensive approach focused on preserving capital while staying positioned for recovery.

Defensive stocks. Companies that provide essentials, such as utilities, healthcare and consumer staples, tend to hold up better in downturns because demand for their products stays relatively steady. They still fall in many bear markets, but often by less.

Value investing. Broad sell-offs can push shares of financially strong companies below a reasonable estimate of their intrinsic value. Careful review of financial statements, cash flow and debt helps separate temporarily cheap companies from those with lasting problems.

Asset allocation. Bonds can provide regular interest income and reduce overall volatility. Some investors also hold gold or other precious metals, which may retain more value during equity declines. Neither is guaranteed to rise when stocks fall; in a bear market driven by rising interest rates, bonds can lose value at the same time as stocks.

Dollar-cost averaging. Investing a fixed amount at regular intervals means buying more shares when prices are low and fewer when they are high. It removes the need to time the bottom and keeps money going into the market when sentiment is worst. Workplace retirement plans with automatic paycheck contributions already work this way.

Avoiding panic selling. Selling after a large decline turns a paper loss into a realized one and risks missing the rebound. The broad U.S. stock market has eventually recovered from every past bear market, but recovery times have varied widely, some taking years, and individual stocks offer no such history. A plan written in advance, specifying target allocations and when to rebalance, makes it easier to stay disciplined.

Signs a Bear Market May Be Bottoming

Spotting the bottom is as hard as spotting the top. Signals that have tended to accompany recoveries include:

Stabilizing economic data. GDP that stops shrinking, unemployment that peaks and consumer spending that firms up suggest the worst may be over. Central banks often cut interest rates during downturns, which can support both the economy and investor confidence.

Easing fear. The Cboe Volatility Index (VIX), often called the “fear gauge,” measures the market’s expectation of S&P 500 volatility over the next 30 days based on options prices. A sustained decline in the VIX can indicate confidence is returning.

Broadening participation. When more stocks start rising together rather than just a few, market breadth is improving. Increased buying by large institutional investors can also signal that participants believe prices have found a floor.

Technical reversal patterns. Double bottoms and bullish divergences, for example when prices make a new low but a momentum indicator such as the relative strength index (RSI) does not, are read by technical analysts as possible turning points.

Sentiment is usually at its worst near the bottom. Optimistic headlines about recovery tend to appear only after prices have already risen substantially, so waiting for good news before buying often means buying after much of the rebound has happened.

Can Investors Profit During Bear Markets?

Yes, but the main methods carry significant risk and are not suitable for every investor.

Short selling. An investor borrows shares, sells them at the current price and buys them back later to return to the lender. If the price has fallen, the investor keeps the difference, minus borrowing costs. If the price rises instead, losses grow with it, and because a price has no upper limit, the potential loss on a short position is theoretically unlimited. Shorting requires a margin account and can trigger margin calls.

Put options. A put gives the holder the right, but not the obligation, to sell a security at a set strike price before expiration. It gains value as the underlying price falls. The maximum loss for a put buyer is the premium paid, but puts lose value as time passes, so the price must fall far enough and soon enough for the trade to pay off.

Inverse funds. Inverse exchange-traded funds aim to move opposite to an index over a single day. Leveraged versions amplify that daily move. Because they reset daily, their returns over longer periods can differ substantially from the simple opposite of the index’s return, which makes them better suited to short-term use.

For most long-term investors, the more practical approach is indirect: keep buying through dollar-cost averaging and rebalance into stocks as they fall, which positions the portfolio to benefit when prices recover.

FAQs

The Bottom Line

Bull and bear market labels matter most to long-term investors deciding how to act when prices swing. Because start and end dates are assigned after the fact and the broad U.S. market has eventually recovered from every past bear market, a written plan, steady dollar-cost averaging and regular rebalancing hold up better than trying to time peaks and bottoms. Riskier bets like short selling and inverse funds suit few investors.