Bull vs Bear Market: What Is the Difference?
Understanding the two market cycles every investor needs to know.
The simple definitions
Bull Market
A sustained rise of 20% or more in a major stock index from a recent low. Driven by strong economic growth, high employment, and rising corporate profits.
Bear Market
A decline of 20% or more in a major index from a recent peak. Usually triggered by recession fears, rising interest rates, or a financial crisis.
Correction vs Bear Market vs Crash
| Term | Definition | Typical duration |
|---|---|---|
| Pullback | Drop of 5-9.9% | Days to weeks |
| Correction | Drop of 10-19.9% | Weeks to a few months |
| Bear market | Drop of 20%+ | Avg. 9-18 months |
| Crash | Sudden drop of 20%+ in days/weeks | Days to weeks (but recovery varies) |
Historical examples
| Period | Type | S&P 500 change | Cause |
|---|---|---|---|
| 2000-2002 | Bear | -49% | Dot-com bubble burst |
| 2007-2009 | Bear | -57% | Financial crisis |
| Feb-Mar 2020 | Bear | -34% | COVID-19 panic |
| 2022 | Bear | -25% | Inflation / rate hikes |
| 2009-2020 | Bull | +400% | Post-crisis recovery, QE |
| 2020-2021 | Bull | +114% | Stimulus & tech surge |
How long do they last?
- Average bear market: ~9-18 months and -36% decline (S&P 500 historical average).
- Average bull market: ~4-5 years with +180% average gain.
- Bull markets last significantly longer than bear markets — which is why long-term investors consistently profit by staying invested.
How to invest in each phase
In a Bull Market
- Growth stocks and ETFs (QQQ, SPY) tend to outperform
- Momentum strategies work well
- Dollar-cost average in regularly
- Raise stop-losses to protect gains as the market rises
In a Bear Market
- Defensive sectors (utilities, healthcare, consumer staples) hold up better
- Dividend stocks provide income while prices fall
- Cash is a position — it is OK to hold more of it
- Bear markets are buying opportunities for long-term investors
Should you sell everything in a bear market?
Most financial research suggests staying invested is better than market timing. Missing just the 10 best days in the market over a 20-year period cuts your returns in half. Bear markets feel terrible, but they are historically temporary.
How to read which phase you're in
Bull and bear markets are only officially confirmed in hindsight, but several indicators help you read the current environment in real time:
- 200-day moving average: When the S&P 500 trades above its 200-day MA, the long-term trend is bullish. A sustained break below it is a warning sign of a trend change.
- VIX (CBOE Volatility Index): Above 30 signals elevated fear and market stress. Below 15 signals calm — sometimes bordering on complacency. Spikes above 40 are typical of crash conditions.
- Market breadth: More stocks hitting 52-week highs than lows indicates a healthy bull market. When new lows consistently exceed new highs, internal deterioration is already underway even if indexes look fine.
- Yield curve: An inverted yield curve — where the 10-year Treasury yield falls below the 2-year — has preceded every U.S. recession since the 1970s, typically by 6-18 months.
Frequently asked questions
- Is a 20% drop always a bear market?
- By the standard definition, yes — but context matters. The March 2020 COVID selloff hit -34% in just 23 trading days and fully recovered within months. Some analysts require sustained duration (several months) before calling it a true bear market rather than a crash and immediate recovery.
- Should I buy stocks during a bear market?
- Historically, buying during a bear market — especially near the trough — produces the highest long-term returns. The difficulty is that the bottom is invisible until it has already passed. Dollar-cost averaging through the downturn removes the pressure of perfect timing and has outperformed sitting in cash in nearly every historical bear market.
STKMRKT tip: Our daily market barometer — VIX, SPY direction, sector rotation — is one of the fastest ways to read the current phase. A VIX above 30 signals fear; below 15 signals complacency.