The Fear & Greed Index is a simple score from 0 to 100 that sums up how the crypto market feels right now. Lower numbers point to fear, higher numbers point to greed. It’s a quick snapshot of crowd mood, not a price forecast.
On this scale, 0 sits at “extreme fear” and 100 sits at “extreme greed.” Many versions also label the middle as neutral. The idea is straightforward: deep fear often follows sell-offs, while strong greed tends to show up during fast run-ups.
Markets move on stories and emotions as much as on numbers. The index bundles those emotions into one gauge so traders can see if sentiment might be stretched. Crypto versions borrow the concept from a stock-market index popularized in traditional finance.
Different publishers use slightly different recipes, but most blend:
These inputs are processed and weighted to produce the daily score.
Most crypto versions lean heavily on Bitcoin data. Some even treat rising Bitcoin dominance as a sign that investors are hiding in the most established asset when nerves kick in.
People often watch extremes. Very low readings can hint at washed-out conditions, while very high readings can hint at froth. Many traders treat it as a complement to price action, on-chain metrics, and macro news, not as a stand-alone trigger. The score is usually updated daily, so it works best as a short-term sentiment check.
Publishers calculate the index in their own way. For example, Binance Square says it combines trading data with patterns from its user base to build its version. That means two sites can show slightly different scores on the same day.
The index reads emotion in the present. It doesn’t claim to predict where prices will go next. Spikes can also be brief during news shocks, so context matters when interpreting any single print.
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