What Is a Bull Market (and Bear Market)?
A bull market is a prolonged period when the broad stock market rises, investor confidence improves, and risk appetite stays broadly positive. A bear market is the opposite: a sustained period of declining prices, weaker sentiment, and rising caution.
These terms describe the overall market backdrop, not just one hot stock or one good week. When investors talk about a bull market, they usually mean that major indexes such as the S&P 500 or Nasdaq are trending higher and that more stocks are participating in the advance.
TL;DR: A bull market means the market environment is broadly supportive, with rising prices, improving sentiment, and stronger leadership in riskier parts of the market. A bear market means the background trend is weaker and rallies are less reliable. In ScreenerHub, you can screen for bull-market leadership by combining Relative Strength, moving averages, and 52-week high/low filters.
Why Bull and Bear Markets Matter
Many beginners focus only on individual companies. That is useful, but it misses an important truth: the same stock can behave very differently depending on the market regime around it.
In a bull market, investors are usually more willing to pay up for growth, momentum, and future potential. In a bear market, they often become more selective, demand stronger balance sheets, and punish even small disappointments. The broad trend affects valuation, volatility, and how easy it is for good stocks to keep working.
This is why market context matters before you start screening. A strong business in a weak market can still struggle. A decent business in a strong market can sometimes keep rising simply because capital is flowing into risk assets.
| Ignoring market regime | Using market regime as context |
|---|---|
| You may treat every stock move as company-specific | You see whether the broader market is helping or hurting |
| Pullbacks can feel random | Corrections make more sense inside the larger trend |
| Risk can rise without you noticing | Position sizing and expectations become more realistic |
| Screens may surface weak setups | You can focus on names aligned with the market backdrop |
Bull Market vs. Bear Market
There is no single official formula that defines every market cycle, but investors use a common practical convention: a bear market often means a decline of 20% or more from a recent peak in a major index, while a bull market begins after a durable recovery from those lows.
| Market phase | What it usually looks like | Typical investor mood |
|---|---|---|
| Bull market | Rising indexes, improving breadth, leadership in stronger stocks | Optimistic, risk-seeking |
| Bear market | Falling indexes, weaker breadth, frequent failed rallies | Defensive, cautious, fearful |
| Transition | Choppy action, mixed leadership, uncertain trend | Hesitant, divided |
The important part is breadth and persistence. One sharp rally does not automatically create a bull market. One ugly week does not automatically create a bear market. What matters is whether the broad market trend changes and whether many stocks confirm it.
A simple market-cycle example
Imagine a market index rises from 4,000 to 5,000 over a year. That is a gain of 25%. If more sectors participate, pullbacks stay contained, and leading stocks keep making higher highs, that is classic bull-market behavior.
Now imagine the same index later falls from 5,000 to 3,900. That is a drop of 22%. If rallies fail quickly and more stocks break below their long-term trend lines, investors would usually describe that environment as a bear market.
The numbers matter, but the behavior matters just as much.
How to Recognize a Bull Market
Bull markets are not identified by one magical signal. Investors usually look for a cluster of supportive signs.
Common signs of a bull market
| Signal | What It Typically Suggests |
|---|---|
| Major indexes trade above their 200-day average | The long-term trend has turned positive |
| More stocks hit new highs than new lows | Market breadth is improving |
| Cyclical sectors start to lead | Investors are leaning toward growth and risk |
| Pullbacks recover relatively quickly | Buyers are stepping in on weakness |
| Earnings expectations stabilize or improve | The macro backdrop is becoming more supportive |
Context matters: Bull markets can still include sharp corrections, bad headlines, and sector rotations. The goal is not to predict every swing. The goal is to recognize whether the dominant trend is still up.
This is also where sector rotation becomes useful. Early in a recovery, leadership may come from one group of sectors. Later in the cycle, a different set of industries may take over. A bull market is often strongest when leadership broadens instead of narrowing to just a few popular names.
What a Bull Market Means for Stock Selection
A bull market does not mean every stock is a good buy. Weak businesses can still underperform badly, and overhyped stocks can still collapse even while the index rises.
What a bull market does change is the odds. Trend-following and growth-oriented filters often work better when the broader market is supportive. Breakouts are more likely to hold. Stocks near their highs are less likely to be immediate traps. Momentum strategies usually have an easier environment than they do in a bear market.
That is why many investors combine market context with stock-level filters. They first decide whether the backdrop is favorable, then look for stocks with strong relative performance, healthy trends, and reasonable business quality.
Bull Markets in a Stock Screener
You do not screen directly for a single field called "bull market." Instead, you look for stocks behaving the way strong stocks often behave inside a bull market: they outperform, stay above key moving averages, and trade near their highs.
Start in ScreenerHub Studio with a trend-strength filter such as Relative Strength (Levy). Then add confirmation from moving averages and price position inside the 52-week range.
Screener 1: Bull-market leaders
Use this screen to find stocks already acting like leaders while the broader market is strong.
| Filter | Setting |
|---|---|
| Relative Strength (Levy) | > 1.05 |
| Price vs 200-day SMA | Above |
| % from 52-week high | >= -10% |
| Market cap | > $500M |
This setup narrows your list to stocks with trend confirmation and visible price leadership. It fits naturally with a momentum workflow such as Find Momentum Stocks Using Trend Strength.
-> Try this screen in ScreenerHub: Relative Strength (Levy) > 1.05 ->
Screener 2: Pullbacks inside an uptrend
Use this when you want stocks that still look healthy but are not fully extended.
| Filter | Setting |
|---|---|
| Price vs 200-day SMA | Above |
| Price vs 50-day SMA | Above |
| RSI (14) | 45 - 65 |
| Revenue growth | > 0% |
This screen helps you avoid chasing the most overheated names while still staying inside the broader bull-market trend.
<!-- [SCREENSHOT: ScreenerHub Studio with Relative Strength, Price vs 200-day SMA, and % from 52-week high filters applied to find bull-market leaders] -->
Common Mistakes When Using the Idea of a Bull Market
- Calling every rally a bull market. Short rebounds also happen inside bear markets. Look for persistence and broad participation.
- Confusing one winning stock with a healthy market. A handful of mega-cap winners can hide weak breadth underneath.
- Dropping risk controls because the market feels easy. Bull markets often reward complacency right before they punish it.
- Buying the weakest names just because "everything goes up." Leadership matters. Strong markets still have laggards.
- Ignoring valuation and business quality. A supportive market backdrop improves odds, but it does not turn weak businesses into strong ones.
Frequently Asked Questions
What officially starts a bull market?
There is no single regulator-defined start date. In practice, investors often use a durable recovery after a major decline, commonly after a 20% rise from a significant low in a broad market index. The exact label matters less than whether the trend and market breadth have genuinely improved.
Does a bull market mean every stock goes up?
No. Even in strong markets, some stocks lag because of weak earnings, heavy debt, poor sector positioning, or fading investor interest. A bull market improves the background environment, but stock selection still matters.
Can bear market rallies happen?
Yes. Bear markets often contain sharp upward moves that look exciting but fail quickly. That is why investors watch longer-term trend measures such as the 200-day moving average and market breadth, not just one fast rebound.
How is a bull market different from a bubble?
A bull market is simply a sustained upward trend in the broad market. A bubble is a more extreme situation where prices become disconnected from fundamentals and speculation dominates. Not every bull market becomes a bubble, although some bubbles form during bull markets.
Related Articles
- What Is Relative Strength (RS Rating)? - a practical way to spot leading stocks in strong markets
- What Is a Moving Average (SMA / EMA)? - the simplest way to confirm whether the long-term trend is still up
- What Is the 52-Week High/Low? - useful price context for identifying leaders and laggards
- What Is Sector Rotation? - understand which groups often lead at different points in the cycle
- Stock Screening for Beginners - build a practical workflow from market context to stock selection