What is the Fear & Greed Index?
The Crypto Fear & Greed Index is a single 0–100 reading of how the whole crypto market feels today. Alternative.me publishes it once a day, and this page shows the latest value. It measures the mood of the market as a whole, not of any single coin.
How the score is built
Alternative.me blends six inputs, each read as fear or greed: price volatility (25%), momentum and trading volume (25%), social-media activity (15%), surveys (15%, currently paused), Bitcoin's share of the total market (10%) and search trends (10%). Big swings down and money crowding into Bitcoin read as fear. Strong buying, busy social feeds and money spreading into altcoins read as greed.
How to read today's number
- 0–25: Extreme Fear
- 26–46: Fear
- 47–54: Neutral
- 55–75: Greed
- 76–100: Extreme Greed
Does “buy when others are fearful” work?
Not reliably over the following weeks. We checked 3,169 days of index history against Bitcoin's price (February 2018 to October 2026). Buying on Extreme Fear days returned a median −4.1% after 90 days, against +3.1% for any day and +10.1% after Extreme Greed days. Momentum mattered more than mood. The full table is in our guide, Crypto Fear & Greed Index Explained.
How WenMoonLambo uses it
Fear & Greed is market-wide mood only. It feeds the Signal Nexus score as one weighted input and is never used as a stand-in for a single coin's sentiment. Per-coin sentiment comes from real CoinGecko community votes, each labelled real, cached or unavailable.
Related guides
Frequently asked questions
What is the Fear & Greed Index?
A daily 0–100 gauge of overall crypto market mood, published by Alternative.me. Low values mean fear, high values mean greed.
What does Extreme Fear mean?
A reading of 25 or below: sharp drops, high volatility and money retreating into Bitcoin. It describes the mood today; it doesn't predict the next move.
Should I buy when the index shows Extreme Fear?
Historically it hasn't been a reliable edge. Over 3,169 days, Extreme Fear days were followed by the weakest median 90-day Bitcoin returns of any band.
Is Fear & Greed per coin or market-wide?
Market-wide only. WenMoonLambo never uses it as a per-coin sentiment fallback.
How often does it update?
Once a day, when Alternative.me publishes a new value.