Market DataIntermediate

Crypto fear and greed index: what it measures and how to read it

The crypto fear and greed index turns crowd emotion into one score. It blends volatility, momentum, social posts and surveys into a daily reading.

Vahe HakobyanEditor-in-chief Updated Oct 6, 20263 min readFact-checked

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What is the crypto fear and greed index?How is the index calculated?How do you read the index?What does the index not tell you?FAQ

Key takeaways

Extreme readings describe mood, not a coming price turn.
It says nothing about a coin's fundamentals or your portfolio.
The inputs and their weights can change over time.

Short answer

The cryptocurrency fear and greed index is a sentiment gauge. It turns several market and social inputs into one score that shows whether traders feel fearful or greedy.

Crypto prices often move on news, rumors, and crowd emotion. The index tries to put a number on that mood, so you can see how scared or excited the market looks at a glance.

What is the crypto fear and greed index?

The cryptocurrency fear and greed index is a sentiment measure for the crypto market. It condenses several market and social inputs into one score that runs from extreme fear to extreme greed. It is not a price level, a valuation, or a recommendation.

How is the index calculated?

The publisher scores each input on its own scale, then combines them into a weighted average. The inputs and their weights can change over time, so the formula is not fixed forever. The best-known version has been published since 2018.

Inputs in the crypto fear and greed index
Input	How it scores
Volatility	Big price swings push the score toward fear.
Momentum and volume	Strong upward moves with heavy buying push toward greed; heavy selling pushes toward fear.
Social media	Worried or hyped posts feed the reading.
Surveys	Poll answers about optimism or fear.
Bitcoin dominance	A rising Bitcoin share leans toward fear.
Google Trends	Searches about crashes or about buying.

How do you read the index?

You usually find the index on the publisher's public dashboard and on some market data platforms, and the reading refreshes once a day. Readings near the fear end point to nervous traders, while readings near the greed end point to excited ones. Extreme fear can appear near market bottoms and extreme greed near tops, but neither one guarantees a turn.

What does the index not tell you?

The index measures mood, not value. It cannot tell you whether a coin has real users, revenue, or a sound token model, and it does not predict price direction. It is not investment advice, and it says nothing about your own holdings, their mix, or their risk.

Frequently asked questions

The most widely cited version comes from a crypto market data site, which has published it since 2018. Other companies publish their own sentiment indexes, so readings can differ.

The best-known reading tracks Bitcoin sentiment. Some publishers offer versions aimed at the wider crypto market, so check which one you are looking at.

It accurately reflects the inputs it uses, but it is not a forecast. The reading can stay extreme for weeks while prices move the other way.

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Written byVahe HakobyanVahe Hakobyan is the editor-in-chief of World-Crypt. He covers bitcoin, markets and regulation, and leads the newsroom that fact-checks every story before it goes live.