What Is a Bear Market? Meaning, Examples, and How Long They Last

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A bear market is a sustained decline in which a stock index or other asset falls at least 20% from its most recent high, usually alongside widespread pessimism about the economy and corporate profits. The 20% line is a convention, not a law of markets. It is useful because it gives investors and the financial press a shared way to label a deep, broad decline. Bear markets have lasted anywhere from a few weeks to several years. They end when prices bottom and begin a lasting recovery, but that point can only be identified afterward.

What classifies a bear market

The standard test is arithmetic. Measure the decline from the highest close of the prior advance:

Drawdown = (Peak close − Current close) ÷ Peak close

Hypothetical example: if an index peaked at 5,000 and now closes at 3,950, the drawdown is (5,000 − 3,950) ÷ 5,000 = 21%. Under the common rule, that index is in a bear market. At 4,100 the drawdown would be 18%, which is correction territory.

A few details change how the rule is applied:

• Closing prices, not intraday swings. The convention typically uses closing levels. An index that briefly trades 20% below its high during a session and then recovers may not be counted. On December 24, 2018, U.S. indexes came close to the threshold but stopped just short of a 20% drawdown, so that decline is usually not counted as a bear market.
• The start date is set in hindsight. A bear market is dated from the peak, but nobody knows the peak was the peak until prices fall 20%. By the time the label applies, the decline is already a fifth of the way down.
• The label applies to a specific index or asset. One index can be in a bear market while another is not.

A second, looser definition focuses on behavior instead of a number. Here a bear market is a stretch when investors are more risk-averse than risk-seeking. They favor cash, bonds and defensive companies over speculative growth bets. This kind of bearish market can persist for months or years even when the index never posts a clean 20% fall.

Why bear markets happen

Stock prices reflect what investors expect companies to earn. When profits come in below forecasts, or growth slows more than analysts predicted, investors sell. If that pessimism spreads across many companies at once, the decline feeds on itself. Fear and herd behavior push more people to sell to limit losses, and prices can stay depressed for a long time.

Typical causes include:

• A weak or slowing economy. Warning signs include rising unemployment, falling disposable income, weak productivity and declining business profits.
• Bubbles bursting. When prices have run far ahead of earnings, the unwinding can be severe, as the dot-com collapse showed.
• Inflation and interest rates. Higher policy rates raise borrowing costs and reduce the present value of future earnings, which puts particular pressure on growth stocks. Tax changes and other government policy shifts can have a similar effect. Because the same mechanism pushes down bond prices, stocks and bonds sometimes decline together in an inflation-driven bear market.
• External shocks. Pandemics, wars, geopolitical crises and structural shifts in the economy can all undermine confidence quickly.
• Expectations alone. If enough investors believe a downturn is coming, they sell ahead of it, which can help bring it about.

How long bear markets last

Duration depends on the type. A cyclical bear market is a decline within the normal business cycle. It can last from a few weeks to several months, or in severe cases a year or two, before a new uptrend begins.

A secular bear market is a long period, often 10 to 20 years, when returns stay below average overall. Within it, stocks may rally hard for months, but the gains do not hold and prices fall back. An investor who bought near the start of a secular bear may wait many years to see a meaningful real gain.

History shows how wide the range is. Between 1900 and 2018, the Dow Jones Industrial Average went through roughly 33 bear markets, about one every three years on average. Some were brief and sharp. Others ground on for years.

The four phases of a bear market

Analysts often describe bear markets as moving through four stages. Real declines rarely follow the script exactly, and the phases are easier to label after the fact.

Phase 1: High prices and complacency

Prices sit near their highs and sentiment is optimistic. Toward the end of this phase, some investors begin taking profits and stepping away. Leadership may narrow and fewer stocks may set new highs, while the headline indexes still look healthy.

Phase 2: Sharp declines and capitulation

Prices fall quickly. Trading activity and corporate profits drop, and economic indicators that had been positive slip below average. Fear takes over and many investors sell regardless of price. This wave of panic selling is called capitulation.

Phase 3: Speculators return

Bargain hunters and short-term traders start buying, which lifts some prices and trading volume. These moves can be powerful but temporary. A bear market rally is a sharp rise of 10% or more inside a continuing downtrend. A bear trap is a rally that convinces investors the decline is over, or squeezes short sellers, before prices resume falling.

Phase 4: A slow grind toward the bottom

Prices keep falling, but more slowly. Over time, low valuations and improving news draw investors back, and the bear market gives way to a new bull market.

How to tell when a bear market is over

The final low is simply the lowest close before a lasting recovery, and many rallies along the way look like that recovery until they fail.

The most widely used convention mirrors the start rule. A new bull market is said to begin when the index rises 20% from its bear market low. That rule also works backward: once the 20% gain occurs, the bull market is dated from the low, which may have been weeks or months earlier. Investors who wait for confirmation will have missed the first leg of the rebound by definition.

Other signals investors watch include improving corporate earnings estimates, rallies that hold instead of reversing, broader participation as more stocks rise alongside the index, and easing monetary conditions. None of these reliably marks the bottom on its own. That is why many long-term investors do not try to time the turn at all.

Bear market vs. correction

A correction is a decline of 10% to 20% from a recent high. It is usually shorter and shallower than a bear market, and it often happens inside a longer uptrend without changing the broader direction of the market. A 19% fall and a 21% fall feel much the same to a portfolio, even though only one carries the bear market label.

The practical difference lies in what happens next. Value investors often treat corrections as entry points, because the uptrend tends to resume. Bear markets are harder to buy into, because it is nearly impossible to know how far the decline will run. Once losses are deep, recovering them takes a disproportionately large gain. A 20% loss needs a 25% gain to break even, and a 50% loss needs a 100% gain. Buying too early in a bear market can mean sitting through further declines.

Why an index can look healthy while stocks feel bearish

Market-capitalization-weighted indexes like the S&P 500 give the largest companies the biggest influence. If a handful of very large stocks are rising, the index can hold up or climb while many smaller companies sit well below their highs. In that case, plenty of individual stocks can be in their own bear markets while the headline index is not.

Different indexes can also disagree. The Dow Jones Industrial Average holds 30 large companies weighted by share price. The Nasdaq Composite is heavily concentrated in technology and growth stocks, which are more sensitive to interest rates. In March 2022, the Nasdaq Composite entered a bear market amid the war in Ukraine, sanctions on Russia and high inflation, months before the S&P 500 crossed the same threshold in June 2022. Which index you watch can determine whether you would say the market is in a bear market at all.

Notable bear markets in history

The Great Depression (1929 onward). The crash of October 28 to 29, 1929, began the most severe bear market in U.S. history. Losses accumulated over several years as the economy collapsed.

The dot-com bust (2000 to 2002). After the technology bubble burst in March 2000, the S&P 500 lost roughly 49% of its value in a decline that lasted until October 2002. Many companies whose valuations had raced far ahead of their earnings never recovered.

The financial crisis (2007 to 2009). The S&P 500 peaked at 1,565.15 on October 9, 2007. As the damage from mortgage defaults spread through the banking system and the wider economy, it fell for roughly 17 months and lost about half its value. The Dow declined about 54% over the same stretch. This was the last prolonged U.S. bear market before 2020.

The COVID-19 crash (2020). This one stands out for its speed. The Dow fell 38% from its all-time high of 29,568.77 on February 12, 2020, to 18,213.65 on March 23, in just over a month. The Dow entered bear market territory on March 11 and the S&P 500 on March 12, ending the longest bull market on record, which had started in March 2009. From February 19 to March 23, the S&P 500 fell 34%. The recovery was just as quick: the S&P 500 and the Nasdaq 100 set new highs by August 2020.

The 2022 bear market. Rising inflation and aggressive interest-rate increases pushed growth-heavy indexes down first, with the Nasdaq Composite crossing the 20% line in March and the S&P 500 following in June. See the U.S. inflation rate by year for how unusual price pressures were at the time.

Ways investors respond to a bear market

Short selling

Short selling means borrowing shares from a broker, selling them, and buying them back later, ideally at a lower price, to return them. The profit or loss is the difference between the sale price and the repurchase price (the “cover”).

Hypothetical example: a trader shorts 100 shares at $94 and covers at $84. The gain is $10 × 100 = $1,000, before borrowing costs, commissions and any dividends owed to the lender.

The risk runs the other way with no ceiling. A stock can only fall to zero, but it can rise without limit, so losses can exceed the original position. Brokers can also demand more margin or force the position closed. Short selling is not suitable for inexperienced investors.

Put options

A put option gives the buyer the right, but not the obligation, to sell a stock or index at a set strike price on or before an expiration date. Puts can be used to speculate on a decline or to hedge an existing long portfolio. Unlike a short position, the maximum loss for a put buyer is the premium paid. The trade-off is time: if the price does not fall far enough before expiration, the option can expire worthless.

Inverse and leveraged inverse ETFs

Inverse ETFs are built to move opposite to an index. An inverse S&P 500 fund aims to rise about 1% on a day the S&P 500 falls 1%. Leveraged versions target two or three times the inverse daily move. That “daily” matters: these funds reset each day. Over longer periods, especially in choppy markets, their results can drift well away from a simple multiple of the index’s return. They are generally designed for short-term trading or hedging, not for holding through an entire bear market.

Holding, rebalancing and buying lower

For long-term investors, the decision is less about profiting from the decline than about not being forced out of it. A diversified portfolio that holds government bonds, defensive stocks and cash alongside equities is built to absorb a bear market without a fire sale. Rebalancing back to target weights means selling some of what held up and buying some of what fell. Regular contributions, as in a 401(k), automatically buy more shares when prices are lower.

The main risk of selling in fear is missing the rebound. Bear market bottoms are recognized only afterward, and some of the strongest rallies occur near them, so investors who sell and wait for clarity often buy back at higher prices. Buying during a decline suits investors with a long horizon and stable finances; money needed soon, or money borrowed to invest, is poorly suited to a falling market. Spreading purchases over time, instead of trying to buy the exact bottom, reduces the risk of buying too early. A grounding in fundamental analysis helps separate companies whose prices have fallen from companies whose businesses are deteriorating.

If you are near or in retirement

A bear market hurts most when you need to sell assets for income. Withdrawing from a portfolio that has just fallen 30% locks in losses and leaves less capital to recover. This is known as sequence-of-returns risk. Common defenses include holding one to two years of planned spending in cash or short-term bonds, adjusting withdrawals in down years, and keeping an allocation you can stay with during a decline.

FAQs

The Bottom Line

Long-term investors and retirees face bear markets with different risks. For investors with a long horizon and stable finances, a diversified portfolio, regular rebalancing and steady contributions usually beat selling in fear, because bottoms are confirmed only after the rebound has begun. People drawing income should keep one to two years of spending in cash or short-term bonds and adjust withdrawals in down years.