Crypto Fear and Greed Index

What the Crypto Fear & Greed Index measures

The Crypto Fear & Greed Index distills the overall mood of the cryptocurrency market into a single number from 0 (extreme fear) to 100 (extreme greed). It blends several market signals — volatility, momentum, social-media activity and trading volume among them — into one easy-to-read gauge. Rather than telling you what any coin is worth, it tells you how the crowd feels, and invites you to ask whether that feeling has gone too far in one direction.

You can see today’s live reading and the full methodology on our interactive Crypto Fear & Greed Index tool. This page explains how to interpret the number and put it to practical use.

The signals behind the score

The published methodology from alternative.me, the widely-cited source for the index, combines six inputs into the final 0–100 value:

• Volatility (~25%) — current price swings measured against 30- and 90-day averages. Unusually large drops typically register as fear.
• Market momentum & volume (~25%) — buying pressure and volume relative to recent norms. Strong, sustained buying pushes the score toward greed.
• Social media (~15%) — the rate and tone of crypto-related posts and engagement.
• Surveys (~15%) — periodic polls of market participants (used intermittently).
• Bitcoin dominance (~10%) — Bitcoin’s share of total crypto market value, read as a risk-appetite proxy.
• Search trends (~10%) — Google Trends data for crypto-related queries.

Reading the score: the five zones

The 0–100 range is usually split into five bands. The exact label matters less than the direction of travel and how close the reading is to an extreme:

• 0–24 — Extreme fear: deep pessimism, often near capitulation.
• 25–44 — Fear: caution dominates and sellers are in control.
• 45–55 — Neutral: balanced sentiment with little directional signal.
• 56–74 — Greed: optimism is building and buyers are confident.
• 75–100 — Extreme greed: euphoria, with the crowd heavily exposed.

A score drifting from neutral toward fear tells you sentiment is cooling; a push toward greed tells you optimism is building.

How to read it against the crowd

The thinking behind the index is the old market adage about being fearful when others are greedy and greedy when others are fearful. Extreme fear can indicate that investors are overly worried, which some view as a reason to pay closer attention. Extreme greed can suggest the market is running hot and may be vulnerable to a pullback. Many investors deliberately read the index against the crowd — but that is a framing for managing your own emotions, not a mechanical timing rule. Like every indicator, it describes current sentiment; it does not predict what prices will do next.

A worked example

Suppose the index reads 18 (Extreme fear). The useful question is not “should I buy?” but “does the current price reflect a genuine fundamental problem, or has panic pushed it past fair value?” To answer it, you might ask: Is there a specific news event driving the fear, or has the market simply drifted down for weeks? Is Bitcoin dominance rising (a flight to safety within crypto) or falling (a broader exit)? What was the reading a week ago? An 18 with a clear catalyst and stabilising volume is a very different situation from an 18 with no obvious driver. The number opens the conversation; your own analysis closes it.

How investors actually use it

In practice the index is most useful as a secondary check rather than a primary signal. Long-term investors use extreme-fear readings as a prompt to review whether their thesis still holds while prices are depressed. Active traders watch for the score reaching an extreme and then reversing, which can mark a sentiment turning point more reliably than the extreme itself. Dollar-cost-averaging investors often ignore it entirely, since their strategy is designed to remove sentiment from the decision. In every case it works best alongside fundamentals, on-chain data and your own risk plan.

Limitations and important context

The index is one signal among many and should never be read in isolation. It says nothing about a project’s fundamentals or technology, it can be slow to reflect sudden news, and markets can stay fearful or greedy for long stretches — an extreme reading can persist through an entire trend. It is provided here for general information and education only and is not financial advice. The value shown is sourced from alternative.me and refreshed on a regular cache cycle.

Frequently asked questions

Is a low Fear & Greed score a buy signal? Not on its own. A low score reflects current pessimism, which contrarians watch closely, but fear can persist through a long decline. Treat it as a prompt to investigate, not an instruction to act.

How often does the index update? The reading is recalculated daily and the figure on this site refreshes on a regular cache cycle. For the live value, see the Fear & Greed tool.

Does the index cover the whole crypto market or just Bitcoin? It is Bitcoin-weighted but reflects broad market sentiment, since Bitcoin’s mood tends to set the tone for the wider market.