Investing | August 4, 2026 | Capstag.com | 10 min read
Bull Market vs Bear Market: How to Invest in Both
Most investors only learn how to behave in a bull market or a bear market — rarely both. That gap is expensive, because every long-term investor will live through several of each.
Quick Answer: A bull market is a sustained rise in stock prices, typically a gain of 20% or more from a recent low, usually accompanied by strong economic growth and investor optimism. A bear market is the opposite: a decline of 20% or more from a recent high, typically driven by economic slowdown and pessimism. The right response in a bull market is to avoid chasing recent winners and stay diversified; the right response in a bear market is to avoid panic selling and, if possible, continue buying at lower prices through dollar-cost averaging.
Bull and bear markets are the two defining phases of every market cycle, and understanding both — not just whichever one happens to be happening right now — is essential to investing successfully over a multi-decade horizon. As a finance strategist, the investors who build the most wealth are rarely the ones who correctly predict the next bull or bear phase; they are the ones who have a clear, pre-decided plan for how to behave in each one, so market conditions never dictate emotional decisions.
What Is a Bull Market?
A bull market is a sustained period of rising stock prices, commonly defined as a gain of 20% or more from a recent low. Bull markets are typically associated with a strong economy — low unemployment, healthy GDP growth, rising corporate earnings, and high investor confidence. According to historical market data, the average bull market since the late 1920s has lasted approximately 8.3 years and produced a cumulative average return of roughly 276%, though individual bull markets vary enormously in length and magnitude. The longest bull market in modern history ran from 2009 to 2020, an eleven-year stretch following the financial crisis that delivered a total return exceeding 500%.
What Is a Bear Market?
A bear market is a sustained decline in stock prices of 20% or more from a recent high, typically driven by economic slowdown, rising unemployment, or a major shock to investor confidence. According to historical data, the S&P 500 has experienced roughly 27 distinct bear markets since 1928, with an average peak-to-trough decline of approximately 35%. Bear markets are considerably shorter than bull markets on average — roughly 1.5 years versus 8.3 years — but their intensity makes them feel far more significant in the moment than their actual duration relative to the full market cycle.
Bear Market vs Market Correction: These two terms are frequently confused, and the difference matters. A market correction is a decline of 10% or more from a recent high — common, normal, and often resolved within weeks to a few months, sometimes happening multiple times within a single bull market. A bear market is a deeper, broader, more sustained decline of 20% or more, typically lasting months rather than weeks. Not every correction becomes a bear market — most do not.
Where the Terms "Bull" and "Bear" Actually Come From
The terms originate from the way each animal attacks. A bull thrusts its horns upward, which became a visual metaphor for a market driving prices higher. A bear swipes its claws downward, mirroring a falling market. One historical account traces "bear" to 18th-century London traders who sold stock they did not yet own, hoping to buy it back later at a lower price — a practice tied to the proverb about not selling a bear's skin before catching the bear. These traders were called "bearskin jobbers," eventually shortened simply to "bears," with "bulls" coined afterward as the natural counterpart.
How to Tell Which Market Phase You Are In
| Indicator | Bull Market Signal | Bear Market Signal |
|---|---|---|
| Stock Prices | Rising broadly, new highs | Falling broadly, new lows |
| Unemployment | Low and stable | Rising |
| Corporate Earnings | Growing | Declining or stagnant |
| Investor Sentiment | Optimistic, confident | Pessimistic, fearful |
| GDP Growth | Positive | Slowing or negative |
It is worth noting that the stock market and the broader economy, while related, are not the same thing — it is difficult to determine with certainty whether economic conditions caused a market phase or the market phase influenced economic conditions, since the relationship runs in both directions. The market also tends to move ahead of the economy, meaning stock prices often start falling or rising before the official economic data confirms the shift.
How to Invest During a Bull Market
Bull markets feel encouraging — account balances grow, headlines turn positive, and it becomes easy to mistake a rising tide for individual skill. This is precisely when the most costly investing mistakes tend to get made, because rising prices create a false sense of certainty.
Stay diversified rather than concentrating in whatever sector is leading. Growth stocks, cyclical stocks, and small-cap stocks often perform particularly well during bull markets, but chasing whichever sector has recently outperformed is a consistently poor long-term strategy once that performance has already happened and is reflected in the price.
Continue your normal contribution schedule rather than accelerating it out of excitement. Dollar-cost averaging works precisely because it removes emotional decision-making from both directions — euphoria during a bull market is just as distorting to judgement as fear during a bear market.
Resist the urge to take on excessive risk. Bull markets create confidence, and confidence can tip into overconfidence — taking on leveraged positions, abandoning diversification, or making concentrated bets because "everything is going up" are decisions that look reasonable in a bull market and look reckless the moment the cycle turns.
How to Invest During a Bear Market
Bear markets test discipline in a way bull markets never do. Seeing a portfolio decline 20%, 30%, or more triggers a genuine psychological response, and the instinct to sell and "stop the bleeding" is powerful — and historically, has been the single most damaging decision an investor can make.
From a Risk Management Perspective: Every one of the 27 bear markets in S&P 500 history has ended, and every bear market has been followed by a bull market that recovered the losses and went on to reach new highs. The investors who suffered permanent damage from a bear market were, almost without exception, the ones who sold during the decline — converting a temporary paper loss into a realised, permanent one. Until you sell, a bear market loss exists only on paper.
Continue contributing if you can. Investing through a bear market means buying shares at lower prices, which sets up stronger returns once the recovery begins. The COVID-19 selloff in early 2020 dropped the market roughly 34% in a matter of weeks and then recovered faster than almost anyone expected — investors who kept contributing through the decline benefited disproportionately from that sharp recovery.
Avoid checking your portfolio obsessively. Frequent checking during a bear market amplifies anxiety and increases the temptation to act emotionally. Many experienced investors deliberately limit portfolio checking to once a quarter during periods of high volatility.
Consider defensive assets if your time horizon is shorter. Bonds, dividend-paying stocks, and consumer staples tend to hold value better than growth stocks during economic slowdowns. This is a more relevant consideration for an investor nearing retirement than for someone with decades until they need the money.
What Beginners Should Not Do in a Bear Market: Short selling and put options are sometimes mentioned as ways to profit from a declining market, but both are high-risk, advanced strategies poorly suited to most individual investors — and entirely unnecessary for a long-term, buy-and-hold approach. A bear market is a test of patience, not an invitation to start trading actively.
Why Time Horizon Matters More Than the Current Market Phase
If you do not need your invested money for decades, it matters far less whether the market is currently bullish or bearish than most financial media coverage suggests. A buy-and-hold investor with a multi-decade time horizon should generally not change their underlying strategy based on which phase the market happens to be in — the strategy that works through a full market cycle is the one that gets followed consistently, not the one that gets switched depending on recent headlines.
Conclusion
Bull and bear markets are not anomalies to be feared or predicted — they are the normal, recurring rhythm of every market cycle, and every long-term investor will experience multiple rounds of each. The difference between investors who build lasting wealth and those who damage their own returns rarely comes down to correctly identifying which phase is coming next; it comes down to having a clear, pre-decided response for both phases and sticking to it regardless of what financial headlines are saying in any given week. Understanding how markets have behaved through past downturns is the best preparation for the next one — our guide on How to Invest During a Market Crash Without Losing Everything goes deeper into surviving the bear phase specifically.
✅ Key Takeaways
- A bull market is a sustained rise of 20% or more from a recent low, typically accompanied by economic strength and investor optimism
- A bear market is a sustained decline of 20% or more from a recent high, typically accompanied by economic slowdown and investor pessimism
- Bull markets have historically lasted an average of 8.3 years with cumulative returns around 276%; bear markets have averaged 1.5 years with average declines around 35%
- A market correction (a 10%+ decline) is not the same as a bear market (a 20%+ decline) — corrections are far more common and usually resolve quickly
- In a bull market, the key discipline is avoiding chasing recent winners and resisting excessive risk-taking driven by overconfidence
- In a bear market, the key discipline is avoiding panic selling and continuing contributions if possible, since every prior bear market has eventually recovered
- Time horizon matters more than the current market phase — long-term, buy-and-hold investors generally should not change strategy based on whether the market is currently bullish or bearish
Frequently Asked Questions
How long does a bear market usually last?
Historically, bear markets have lasted an average of about 1.5 years, though individual bear markets have ranged from a few weeks to several years depending on the underlying cause. The 1987 crash lasted roughly three months, while the 2007-2009 financial crisis bear market lasted approximately seventeen months. Bear markets are consistently shorter on average than the bull markets that follow them.
Should I sell my stocks during a bear market?
Selling during a bear market converts a temporary, paper loss into a permanent, realised one, and historically every bear market in S&P 500 history has eventually been followed by a recovery and new market highs. Most financial professionals recommend continuing to hold — and if possible, continuing to invest — through a bear market rather than selling during the decline, unless the money is needed imminently for expenses unrelated to long-term investing goals.
What is the difference between a market correction and a bear market?
A market correction is a decline of 10% or more from a recent high and is a common, normal occurrence that can happen multiple times even within an ongoing bull market. A bear market is a deeper and more sustained decline of 20% or more, typically driven by broader economic weakness and lasting months rather than weeks. Most corrections do not develop into full bear markets.
What causes a bull market to end?
Bull markets typically end when economic conditions weaken — rising interest rates, slowing corporate earnings growth, increasing unemployment, or an unexpected economic shock can all trigger the shift from a bull to a bear market. There is no fixed timeline; some bull markets have ended after a few years while others, like the 2009-2020 run, lasted over a decade before reversing.
Is it a good idea to invest more money during a bear market?
For long-term investors with money they will not need for several years, continuing to invest during a bear market means buying shares at lower prices, which has historically led to stronger returns during the eventual recovery. This requires emotional discipline, since investing during a decline feels counterintuitive, but dollar-cost averaging through both bull and bear phases has historically outperformed attempting to time market entries and exits.
This article is for educational purposes only. The information provided reflects general financial principles and does not constitute personalised financial, tax, or legal advice. Individual circumstances vary — consult a qualified financial advisor before making major financial decisions.
