Markets don't move in straight lines. They climb, they crash, they recover, they overshoot, and then they do it all again. If you've been investing for any length of time — or even just following the news — you've heard the terms "bull market" and "bear market" thrown around constantly. Add the CNN Fear & Greed Index into the mix, and you have three of the most referenced concepts in investing that most people can't quite define precisely.
Understanding market cycles and sentiment isn't about predicting what happens next. It's about understanding why markets behave the way they do, how your own emotions fit into the pattern, and why the investors who stay disciplined through both fear and greed tend to come out ahead.
What Is a Bull Market?
A bull market is a sustained period of rising prices in the stock market. The most commonly used threshold is a 20% increase from a recent low point — though in practice, nobody rings a bell when a bull market officially begins. You usually only recognize it in hindsight.
Bull markets are driven by a combination of economic growth, rising corporate earnings, low unemployment, accommodative monetary policy, and — critically — investor optimism. As prices rise, more investors feel confident about the future, which drives more buying, which pushes prices higher still. This self-reinforcing cycle is what gives bull markets their momentum.
The longest bull market in modern history ran from March 2009 to February 2020 — nearly 11 years — during which the S&P 500 gained over 400%. Bull markets don't go up in a straight line; there are pullbacks and corrections along the way. But the overall trajectory is upward, and the general mood is one of confidence and risk-taking.
Late-stage bull markets often produce some of the most dangerous behavior. As prices keep rising, investors become increasingly willing to take on risk, valuations stretch beyond historical norms, and the fear of missing out (FOMO) replaces rational analysis. This is when people pile into speculative assets, ignore fundamentals, and assume the good times will continue indefinitely. It never does — which brings us to bears.
What Is a Bear Market?
A bear market is the opposite: a sustained decline of 20% or more from a recent high. Bear markets are driven by economic slowdowns, falling corporate earnings, rising interest rates, geopolitical shocks, or simply the unwinding of excessive optimism from the preceding bull market.
If bull markets are about confidence, bear markets are about fear. As prices fall, investors panic and sell to avoid further losses, which pushes prices down further, which triggers more selling. This negative feedback loop can be vicious and fast — the 2020 COVID-19 bear market saw the S&P 500 drop 34% in just 23 trading days, one of the fastest declines in history.
Bear markets vary widely in duration and severity. The 2007–2009 financial crisis bear market lasted 17 months and saw a peak-to-trough decline of over 50%. The 2020 COVID bear market lasted barely a month before recovery began. The 2022 bear market, driven by inflation and rising interest rates, saw the S&P 500 fall roughly 25% over nine months.
What's consistent across all bear markets is the emotional experience: it feels like the decline will never end. News headlines turn apocalyptic, every data point is interpreted negatively, and the impulse to sell everything and move to cash becomes overwhelming. This is precisely the moment when long-term investors should be doing the opposite.
The Space Between: Corrections and Pullbacks
Not every decline is a bear market. A correction is typically defined as a 10–20% drop from a recent high, and it happens far more frequently than most people realize. On average, the stock market experiences a correction roughly once every 1–2 years. They're a normal and healthy part of market function — a release valve for stretched valuations and excessive optimism.
A pullback is even milder — a 5–10% decline that can happen several times per year. Pullbacks are so routine that experienced investors barely notice them. Yet for newer investors, a 7% decline in their portfolio can feel like a crisis, especially when amplified by alarming news coverage and social media panic.
Understanding this spectrum — pullback, correction, bear market — helps you calibrate your emotional response to market declines. A 5% drop after a strong rally is noise. A 15% correction is uncomfortable but historically normal. A 30% bear market is painful but has always, without exception, been followed by a full recovery and new highs. The question is never whether markets recover, but whether you'll still be invested when they do.
The CNN Fear & Greed Index: Measuring Market Emotion
The CNN Fear & Greed Index is a market sentiment indicator that attempts to quantify whether investors are driven by fear or greed at any given moment. It scores market sentiment on a scale from 0 to 100, where 0 represents extreme fear and 100 represents extreme greed. A reading of 50 is considered neutral.
The index is built from seven market indicators, each weighted equally.
Market momentum measures whether the S&P 500 is above or below its 125-day moving average. When the index trades above this average, it signals positive momentum and greed. Below it signals fear.
Stock price strength compares the number of stocks hitting 52-week highs versus 52-week lows on the NYSE. When far more stocks are hitting highs than lows, it signals broad-based greed.
Stock price breadth uses the McClellan Volume Summation Index to measure whether buying or selling volume is dominant across the market.
Put and call options track the ratio between put options (bets that stocks will fall) and call options (bets that stocks will rise). A rising put/call ratio signals growing fear.
Market volatility uses the VIX — the CBOE Volatility Index — which measures expected price fluctuations in the S&P 500 over the next 30 days. The VIX tends to spike during selloffs and decline during calm, rising markets.
Junk bond demand looks at the spread between yields on high-yield (junk) bonds and investment-grade corporate bonds. When investors are greedy, they chase higher yields and the spread narrows. When fear takes over, they flee to safety and the spread widens.
Safe haven demand compares the returns of Treasury bonds versus stocks over a 20-day period. When investors are fearful, money flows from stocks into the relative safety of government bonds.
Each of these seven indicators is compared to its historical range and assigned a rating from extreme fear to extreme greed. The overall index is the average of all seven.
How to Interpret the Fear & Greed Index
The index is useful as a contrarian signal, not a timing tool. It doesn't predict market direction — it measures current sentiment, which tends to be wrong at extremes.
Extreme fear readings (0–25) have historically coincided with periods near market bottoms. When the index dipped to single digits in early 2020 and during 2022 selloffs, those moments turned out to be excellent buying opportunities in hindsight. Extreme fear means most investors have already sold or are sitting on the sidelines, which paradoxically means most of the selling pressure has been exhausted.
Extreme greed readings (75–100) suggest the opposite — that investors have become overly optimistic and are ignoring risk. Markets can stay in greed territory for extended periods, so a high reading doesn't mean a crash is imminent. But it does suggest that the margin of safety is thin and any negative surprise could trigger a sharp pullback.
Neutral readings (40–60) suggest the market isn't being driven by either extreme, which is generally healthier and more sustainable.
The famous Warren Buffett quote — "Be fearful when others are greedy, and greedy when others are fearful" — captures this philosophy perfectly. The Fear & Greed Index gives you a way to measure what "others" are feeling.
Why Emotions Destroy Returns
The biggest risk to long-term investors isn't market volatility — it's their own behavior. Research consistently shows that the average investor significantly underperforms the very funds they invest in, because they buy after prices have risen (driven by greed) and sell after prices have fallen (driven by fear). They do exactly the wrong thing at exactly the wrong time.
This pattern shows up in the data. Morningstar's annual "Mind the Gap" study regularly finds that the average investor's actual returns lag the returns of their own funds by 1–2% per year — purely due to poor timing of buys and sells. Over a 20-year investing career, that behavioral gap can cost tens of thousands of euros.
Bull markets make you feel like a genius. Bear markets make you feel like a fool. Neither feeling is an accurate reflection of your investment strategy — they're reflections of market conditions that are entirely outside your control. The investors who build real wealth are the ones who maintain their strategy through both phases: continuing to invest during bear markets (when everything in their gut says to stop) and avoiding excessive risk during bull markets (when everything in their gut says to load up).
Market Cycles and Your Portfolio
If you're investing in broad market index funds like VWCE, IWDA, or WEBN, you're already positioned to ride through every market cycle. These funds hold thousands of stocks across dozens of countries and sectors. When the next bear market hits — and it will — your portfolio will decline. It always does. And then it will recover. It always does.
The practical question isn't whether to act on market cycles, but whether to monitor them at all. For most investors, the answer is: be aware, but don't react. Knowing that the Fear & Greed Index just hit extreme fear might give you the confidence to stay invested — or even to invest a little extra if you have cash available. Knowing it's in extreme greed might prevent you from making an impulsive purchase of a speculative asset that "can only go up."
What matters most is having a clear picture of how your portfolio is actually performing through these cycles — not just on days when the market is green. TrackinV shows your portfolio's real performance metrics including maximum drawdown (the worst peak-to-trough decline you've experienced), time-weighted returns that account for when you added capital, and benchmark comparisons that show whether your returns are keeping pace with the market. During volatile periods, this kind of clarity replaces anxiety with data.
The Bottom Line
Bull markets, bear markets, corrections, and pullbacks are all part of the same cycle — a cycle that has repeated for as long as stock markets have existed. The Fear & Greed Index gives you a useful lens into where market sentiment stands today, but it doesn't tell you where it will be tomorrow.
What the historical record does tell you is unambiguous: investors who stay invested through every phase of the cycle, who continue buying through fear and avoid chasing euphoria, consistently outperform those who try to time their way in and out.
Markets reward patience, not prediction. The next bear market is coming. So is the next bull market after that. Your job isn't to see them coming — it's to still be invested when they arrive.
This article is for informational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Always consider your personal financial situation and risk tolerance before making investment decisions.