What Is a Bull Market vs Bear Market (And What's Coming?)

You've heard the terms a thousand times. Bull market. Bear market. Commentators throw them around like everyone knows exactly what they mean and exactly how to respond.

But if you've ever been fuzzy on the precise definitions — or wondered what they actually imply for your portfolio — you're not alone. These terms get misused constantly, and conflating them with short-term volatility leads to bad decisions.

Let's get clear on the definitions, look at the historical record, and talk about how smart investors position themselves for both environments.

(And yes — we'll address the "what's coming?" question honestly, which means resisting the urge to pretend anyone reliably knows.)

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What Is a Bull Market?

A bull market is a sustained period of rising asset prices, typically defined as a gain of 20% or more from a recent low, sustained over at least two months.

The traditional definition applies to broad market indexes like the S&P 500, but the term is also used for individual securities, sectors, and asset classes like bonds or commodities.

The name comes from the way a bull attacks: horns thrusting upward. Prices going up.

Bull markets are characterized by:

• Rising stock prices, typically across broad indexes
• Growing investor confidence and optimism
• Strong economic fundamentals: GDP growth, low unemployment, rising corporate earnings
• Increased public participation in markets (more people opening brokerage accounts, more financial media coverage, more dinner table stock talk)

Historical bull markets by the numbers:

The average bull market since World War II has lasted approximately 4.4 years and produced an average gain of around 150%, according to analysis by First Trust Advisors based on S&P 500 data.

Some notable modern bull markets:

• 1990–2000: Nearly a decade of expansion, fueled by the tech revolution and internet boom. The S&P 500 gained approximately 417% from trough to peak.
• 2009–2020: The longest bull market in U.S. history (at that point), stretching over 11 years from March 2009 to February 2020. The S&P 500 gained over 400% during this run.
• 2020–2022: A rapid post-COVID recovery bull market, where markets nearly doubled from the March 2020 lows to the January 2022 peak in under two years.

Bull markets tend to end quietly at first — the top is often only visible in hindsight — and the transition into a bear market can feel like "just a pullback" until it isn't.

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What Is a Bear Market?

A bear market is defined as a decline of 20% or more from a recent peak, again typically measured in broad indexes.

The bear reference comes from the way a bear attacks: claws swiping downward. Prices going down.

Bear markets are characterized by:

• Sustained price declines across broad markets
• Rising pessimism and fear
• Economic headwinds: slowing GDP, rising unemployment, contracting corporate earnings
• Reduced risk appetite — investors move toward cash, bonds, or defensive assets

Historical bear markets by the numbers:

Bear markets are shorter and shallower than bull markets, on average. Since World War II, the average bear market has lasted approximately 11.1 months and produced an average decline of around 35%, per data from Ned Davis Research.

But averages can be misleading — some bears are brief and sharp, while others are prolonged and grinding:

• The Dot-Com Bear (2000–2002): The S&P 500 fell roughly 49% over about 2.5 years. The Nasdaq, heavily weighted toward speculative tech, fell nearly 78%.
• The 2008–2009 Financial Crisis: The S&P 500 fell approximately 57% from peak to trough, the most severe since the Great Depression. This bear lasted roughly 17 months.
• The 2020 COVID Bear: Lasted just 33 days — the fastest bear market in history. The S&P 500 fell about 34% from its February 2020 peak to its March 2020 trough.
• The 2022 Bear Market: The S&P 500 fell roughly 25% from January 2022 to October 2022, driven by aggressive Federal Reserve rate hikes aimed at taming the highest inflation seen in decades.

The emotional experience of a bear market is significantly different from the data. A 35% decline on paper means your $100,000 portfolio is at $65,000. For someone who needs that money or has a low emotional tolerance for volatility, that's deeply painful.

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The Critical Distinction: Corrections vs. Bear Markets

This is where a lot of confusion comes from.

A market correction is a decline of 10–20% from a recent peak. Corrections happen regularly — historically about once per year on average. They're uncomfortable but relatively common, and they don't necessarily indicate a shift in the broader trend.

A bear market requires a decline of 20% or more. This is a more meaningful threshold — it suggests a genuine change in trend, often accompanied by economic deterioration.

Many corrections that feel terrifying at the time (because you're living through them) never cross the 20% threshold and become official bear markets. The 2018 Q4 selloff in the S&P 500 approached bear territory (down about 19.8% at its trough) but technically never crossed the line.

When financial media calls every 8% drop a "bear market," they're being imprecise. Precision matters here because the appropriate response to a correction is different from the response to a genuine, sustained bear market.

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Secular vs. Cyclical Markets

There's another distinction worth knowing: secular versus cyclical bull/bear markets.

A secular market is a long-term trend lasting roughly 10–25 years. A cyclical market is a shorter-term trend (months to a few years) that occurs within the context of a secular trend.

For example, even during the 1966–1982 secular bear market (a long period of flat-to-negative real returns), there were multiple cyclical bull markets — temporary rallies within the larger downtrend. Similarly, during the secular bull market of 1982–2000, there were significant cyclical corrections and even a brief cyclical bear in 1987.

Understanding this distinction helps you avoid the trap of declaring that a temporary rally during a tough period means everything is fine, or that a temporary correction during a strong period means disaster is imminent.

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What's Coming? (The Honest Answer)

Here's where we have to be direct with you: nobody reliably knows what the market will do next.

This is not a hedge or a disclaimer to avoid liability. It's simply true — and it's documented extensively in the academic literature on market forecasting. Professional economists, Wall Street strategists, and hedge fund managers with enormous research budgets consistently fail to predict market direction with accuracy better than chance.

What we do know from the historical record:

• Bull markets are more common than bear markets. Markets spend more time rising than falling. The historical long-run annual return of the S&P 500 (with dividends reinvested) has been approximately 10% per year over the last century.
• Bear markets are inevitable but temporary. Every bear market in U.S. history has eventually been followed by a recovery to new highs — for diversified index investors.
• Valuations matter for long-run returns, but not short-run timing. High valuations (like elevated P/E ratios) are associated with lower expected future returns over 10-year periods — but they're terrible at predicting what will happen in the next 12 months.
• Recessions and bear markets often (but not always) travel together. Of the bear markets since WWII, most were associated with recessions, though the relationship is imperfect.

Anyone claiming to know with confidence whether we're about to enter a bull or bear market is either misinformed or misleading you.

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How to Position Yourself for Either Environment

The good news is that you don't need to predict bull or bear markets to invest well. Here's the framework:

1. Set an allocation appropriate for your risk tolerance — and hold it. A 60/40 or 70/30 portfolio will lose real money in a severe bear market — but it will also significantly participate in bull markets. A more conservative 40/60 will lose less in the bad times but gain less in the good ones. The "right" allocation is the one you can actually hold without panic-selling.

2. Rebalance systematically. When stocks have rallied hard (bull market), rebalancing trims them and adds to the lagging assets. When stocks have fallen hard (bear market), rebalancing adds to them at lower prices. This discipline is a built-in "buy low, sell high" mechanism that doesn't require any market prediction.

3. Maintain cash reserves. Having 3–6 months of living expenses in cash means you'll never be forced to sell investments at the worst time (during a bear market) to cover expenses.

4. Extend your time horizon mentally. The longer your time horizon, the less a bear market matters. A 30-year-old watching a 40% decline still has 30+ years of future returns ahead. A 60-year-old approaching retirement is more vulnerable — which is why allocation should become more conservative as the withdrawal phase approaches.

5. Ignore the predictions. Not because the predictors are stupid, but because the evidence is clear: market timing is a loser's game for most investors. The cost of being wrong — missing a sharp rally or staying in cash too long — typically outweighs any gains from correctly predicting a decline.

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The Bottom Line

Bull markets and bear markets are the rhythm of investing. They've alternated throughout the history of capital markets, and there's no reason to think that will change.

Bull markets feel great and make everyone look like a genius. Bear markets are painful and make everyone question everything. Both are normal. Both are survivable. And both offer opportunities for the investor who stays grounded.

The edge isn't in predicting which one comes next. The edge is in building a sensible allocation, maintaining it through discipline, and staying in the game long enough for compounding to do its work.

The market rewards patience more than it rewards prediction.

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