What Is Crypto Fear and Greed Index?
The Crypto Fear and Greed Index is a composite sentiment indicator that scores overall market sentiment on a scale from 0 (extreme fear) to 100 (extreme greed). It's calculated from multiple inputs: volatility (25%), market momentum/volume (25%), social media activity (15%), surveys (15%), Bitcoin dominance (10%), and Google Trends (10%).
How Crypto Fear and Greed Index Works
The index maps to sentiment zones: 0-24 = Extreme Fear, 25-49 = Fear, 50 = Neutral, 51-74 = Greed, 75-100 = Extreme Greed. It's updated daily and provides a quick snapshot of the market's emotional state. The index tends to lag price slightly (it moves into fear after a decline has started, not before).
Why It Matters for Traders
Warren Buffett's "be greedy when others are fearful, and fearful when others are greedy" applies directly to this index. Historical analysis shows that buying when the index is in Extreme Fear (below 20) and reducing exposure when it's in Extreme Greed (above 80) significantly outperforms passive holding. The key is having the conviction to buy when the index screams fear — which is when it feels worst psychologically.