😱 Crypto Fear & Greed Index Fear and Greed Index
A single number from 0 to 100 that sums up the mood of the crypto market: 0 = extreme fear (everyone is scared), 100 = extreme greed (everyone is euphoric). It blends several market signals into one daily reading.
🌡️ The simple version — a thermometer for crowd emotion
Prices alone don't tell you how people feel. The Fear and Greed Index turns that feeling into one number you can read at a glance. A low score means the crowd is scared and selling; a high score means the crowd is overconfident and buying. Think of it as a thermometer for the crowd's emotion: it tells you how feverish things are right now, not whether the patient gets better or worse.
📊 The 0–100 scale and its labels
| Reading | Label | What the crowd is doing |
|---|---|---|
| Low | 😱 Extreme Fear | Panicking, selling, expecting the worst |
| ↓ | 😟 Fear | Nervous and cautious |
| Mid | 😐 Neutral | No strong emotion either way |
| ↑ | 🙂 Greed | Optimistic, buying with confidence |
| High | 🤑 Extreme Greed | Euphoric, buying out of FOMO |
📐 A common shortcut groups the whole scale into just two halves: Fear (0–49) versus Greed (50–100). The exact cutoffs between bands vary a little by provider.
⚙️ How the number is built
It's not a price chart — it's a blend of several market signals squeezed into one daily figure. The most widely cited version, from Alternative.me, mixes its inputs like this:
| Signal | Weight |
|---|---|
| 📉 Volatility | 25% |
| 📈 Market momentum & volume | 25% |
| 💬 Social media activity | 15% |
| 🗳️ Surveys (currently paused) | 15% |
| 👑 Bitcoin dominance | 10% |
| 🔍 Google Trends | 10% |
The result is then compared against 30- and 90-day averages to flag unusual spikes. Notice how much of this keys off Bitcoin: its volatility, its dominance, and its search trends all feed the score, which makes the index heavily Bitcoin-centric.
🔀 Why two sites can show different numbers
There is no single official index. Each provider builds its own. CoinMarketCap's version, for example, uses the price momentum of the top-10 coins, implied volatility (including Ethereum's, via EVIV), options put/call ratios, the Stablecoin Supply Ratio, and its own social data. Coinglass publishes yet another. So on the same day, one widget might read “Fear” while another reads “Neutral.”
🚨 Things beginners should know
- 🚫 Not a trade signal — A reading of “Extreme Fear” is not a buy button. It's mood, not a forecast.
- 🐢 It lags — It mostly reflects how people already feel, which can change fast.
- 🔢 Many versions — Different methods give different numbers, so check which one you're looking at.
- 🧭 Use it as one clue — Pair it with other research and always DYOR. The old contrarian idea (be fearful when others are greedy, greedy when others are fearful) is a mindset, not a rule.
❓ FAQ
- Is the Fear and Greed Index a buy or sell signal?
- No. It is a snapshot of the crowd's mood, not a prediction. Extreme fear has sometimes come right before a recovery and sometimes right before a deeper drop. Treat it as one clue among many, never as a standalone instruction to trade.
- Is there one official Fear and Greed Index?
- No. Several providers publish their own versions with different methods, so the same day can show different scores. Alternative.me, CoinMarketCap and Coinglass each calculate it differently.
- What goes into the score?
- It depends on the provider. The widely cited Alternative.me version blends volatility, market momentum and volume, social media activity, surveys (currently paused), Bitcoin dominance and Google Trends, then compares the result to 30- and 90-day averages.