The Fear and Greed Index is a composite gauge of crypto market sentiment from 0 to 100. Low values mean fear and selling, high values mean greed and emotional buying. It does not predict price — it measures how far the crowd has already leaned to one side, which is why it works as a contrarian signal, not a buy button.
What it is — a number from 0 to 100 that compresses volatility, volume, Bitcoin dominance and search interest into a single read on market emotion.
Why it matters — extreme fear often coincides with local bottoms, extreme greed with overheated tops. It is not a prediction, just a sign that one side has already pushed too far.
How to use it — never alone. Cross-check it with the long/short ratio and price behaviour. See the current index value in real time.
from panic to euphoria
to extreme greed
and updated once a day
BTC dominance and trends
What's inside
- What the Fear and Greed Index is
- What the index is built from
- The scale: five sentiment zones
- 5 things you can see at a glance
- The contrarian rule — why it works
- 3 ways to apply the index
- Common mistakes
- The index versus other signals
- When the index lies
- A checklist before the trade
- Frequently asked questions
What the Fear and Greed Index is
Price shows you what the market did. The Fear and Greed Index tries to show why — which emotion paid for that move. The idea is simple: market participants take turns swinging between two extremes. When everyone is scared, assets get dumped below any reasonable price. When greed takes over, people buy anything at any leverage. The index compresses these moods into one number from 0 to 100, where 0 is panic and 100 is euphoria.
The concept is older than crypto: the classic sentiment index was designed for the stock market to measure the tug-of-war between greed and fear. The crypto version was popularised by Alternative.me, and that is what people mean today when they talk about the "fear and greed index" for Bitcoin. It is a public indicator — calculated not by an exchange or a single trader, but by an independent aggregator from open market data.
The key thing to grasp up front: the index is a thermometer, not a compass. It tells you how hot the room is, not which door to walk through. A high reading (greed) raises the odds of a reversal down; a low one (fear) raises the odds of a bounce. But "raises the odds" is not "guarantees tomorrow". So the index is context for a decision, not the decision itself. The live value and the zone scale are easy to keep in front of you on the real-time index page.
What the index is built from
The single number on the gauge is an average of several components, each catching its own facet of sentiment. The exact weights differ between providers, but the logic is shared, and understanding it matters: otherwise you trust a number without knowing what it absorbed.
Volatility. A sharp rise in volatility and the depth of a drawdown relative to recent averages read as fear — the market is jittery and nervous. Calm volatility pulls the index toward neutral.
Market momentum and volume. When buy volume is high and momentum points up for several days in a row, it reads as greed. Strong downside momentum on heavy volume reads as fear.
Bitcoin dominance. A rising share of BTC in total market cap often signals a flight to the relative "safe haven" of crypto — that is, fear toward altcoins. Falling dominance, conversely, points to risk appetite.
Search interest. Spikes in queries like "bitcoin crash" or "buy bitcoin now" show that an emotional crowd is entering the market. Historically, social-media activity and sentiment surveys were also folded in, but those components are included differently across index versions.
One simple takeaway follows from this kitchen: the index is a composite. It is more robust than any single one of its components, but for the same reason it is slower than them. It shows the settled mood of the last few days, not what is happening in the order book right now.
The scale: five sentiment zones
The index value falls into one of five zones. The boundaries are not strict entry levels but markers of the emotional backdrop. The farther from the centre (50), the stronger the skew and the higher the chance the market starts to "unwind" the accumulated emotion.
| Zone | Value | What usually happens next |
|---|---|---|
| Extreme fear | 0–24 | Capitulation, emotional selling. Historically this is where local bottoms form more often than crashes continue. |
| Fear | 25–44 | Caution, weak hands leaving. The market looks for support but has no confidence — a backdrop that favours the buyer. |
| Neutral | 45–55 | Balance. The index carries almost no signal — the decision has to come from other data. |
| Greed | 56–74 | Healthy risk appetite. The trend can continue, but the "fuel" reserve is gradually burning off. |
| Extreme greed | 75–100 | Euphoria, buying at any leverage. An elevated-reversal-risk zone — the crowd is maximally overheated. |
→ Scroll the table right
5 things you can see at a glance
- The zone. Look first at the zone, not the exact number. "18" and "23" are the same thing: extreme fear. A point or two inside a zone is irrelevant.
- Direction. Is the index rising or falling? The move from fear to greed and back matters more than a frozen number. A turn in the trend is a signal in itself.
- Duration. A day in extreme greed is noise. A week in extreme greed is structural overheating that the market sooner or later unwinds.
- Divergence with price. Price prints a new high while the index no longer updates its greed peak — emotion is fading ahead of price. A classic sentiment divergence.
- Historical context. 70 on a calm market and 70 after a month of panic are different things. Look at the two-week trajectory, not a single dot.
The contrarian rule — why it works
The core idea of using the index was stated long before crypto: "Be greedy when others are fearful, and cautious when others are greedy." It sounds like a platitude, but there is mechanics behind it. When the index is in extreme fear, the emotional sellers have already left — there is almost no one left to sell, and any good news turns the market up. When the index is in extreme greed, the opposite: buyers are already in at maximum leverage, there is little free "fuel" for further gains, and a small trigger is enough to start a cascade.
That is exactly why index extremes are not magic or prophecy but the arithmetic of positioning. The crowd at peak greed physically holds maximum risk, and that risk has to be serviced somehow. Some participants cannot take the first drawdown — and sell. Their selling presses price, provokes the next ones, and the overheating "unwinds" in a cascade. We cover the same mechanism in detail through the skew in funding rate and the clusters in the liquidation map — the Fear and Greed Index is the same story told in the language of emotion.
See the Fear and Greed Index in real time
Moami's free page shows the current value, the zone and a two-week history of crypto market sentiment — no signup. And when you need to match the market's emotion against your specific trade, the AI team breaks the position down and returns an explanation, not a prediction.
3 ways to apply the index
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An overheating filter, not an entry trigger
The healthiest use: don't open new leveraged longs when the index has sat in extreme greed for days, and don't panic-sell in extreme fear. Here the index is an emotional "stop-cock" that keeps you from joining the crowd at the peak.
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Confluence with other data
An index extreme becomes a trade only together with independent confirmation: a reversal candle on the daily, a liquidation cluster on the overloaded side, a divergence in the long/short ratio. Two or three signals pointing the same way weigh incomparably more than the index alone.
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Accumulation discipline
For a long-term investor, fear zones are windows for scheduled partial buys, and extreme-greed zones are a reason not to add risk and to take some profit. Not a pinpoint entry but a change of pace: buy a bit more actively in fear and more sparingly in greed.
Practical tip. Compare today's value with its range over the past month, not with an abstract "norm". If the market hasn't left greed for a month, then "65" is not cause for alarm but the backdrop. Overheating is a break out of the usual corridor, not a high number on its own.
Common mistakes
Buying just because it's scary. Extreme fear raises the odds of a bounce, but it doesn't cancel the trend. In a prolonged bear market the index can sit in fear for weeks while price keeps falling. One signal does not make a trade.
Shorting on the first sign of greed. A strong bull trend holds extreme greed for a long time. Standing against it "because the index is high" is the most expensive way to learn that sentiment and price live at different speeds.
Reacting to every wiggle. The index updates once a day and changes slowly. Refreshing the page every hour and flinching at a couple of points is a direct path to overtrading.
Treating the index as direction. It measures emotion, not price. High greed does not mean "price goes up tomorrow", only "the skew risk is large". Confusing the two is a classic beginner's mistake.
The index versus other signals
- A fast snapshot of the emotional backdrop — one number instead of a dozen charts.
- A contrarian marker — it highlights zones where the crowd is overheated.
- Discipline — it stops you buying in euphoria and selling in panic.
- A sentiment history — the two-week trajectory matters more than a single dot.
- Price direction — this is a gauge of emotion, not a trend indicator.
- Timing — even a perfect extreme can reverse in a week, not today.
- Liquidation levels — for that you need the liquidation map.
- Your personal risk — the index knows nothing about your leverage, stop and position size.
When the index lies
On strong trends. In a powerful bull cycle extreme greed can hold for weeks, and everyone who shorted "because it's 80" paid for it. The trend overrides sentiment.
On fundamental events. A major product approval, a halving, a macro headline — price moves on a real catalyst, not on emotion. On such days the index describes the past, not the future.
In moments of sharp shocks. The index updates once a day. In a crash or a spike over hours it lags: by the time it shows "extreme fear", the move has largely already happened.
When comparing eras. Market structure changes. A "50" in 2018 and in 2026 rests on different volumes, a different participant mix and different component weights. Compare the trajectory, not bare numbers from different years.
A checklist before the trade
Before you lean on the index for an entry, run through the list. If even one item isn't ticked — stay in observation.
- Zone, not number. The index is in an extreme zone (0–24 or 75–100), not somewhere nearby. Mid-range values carry no signal.
- At least several days. The extreme is holding, not a one-day flash. Persistence matters more than depth.
- Confluence. There is at least one independent signal the same way: a reversal structure, a liquidation cluster, a long/short-ratio divergence.
- No major catalyst. You're not standing against a fresh fundamental headline or event that explains the move beyond emotion.
- Risk ≤1% and a clear invalidator. A contrarian trade is always against the crowd. Know in advance the level where the scenario stops working, and keep size within 1% account risk.
Editorial note. Moami AI provides probabilistic analysis — explanations and scenarios, never predictions. The Fear and Greed Index is one of dozens of signals the AI team cross-references with risk, liquidity and price behaviour to help you decide on data rather than emotion. You can match market sentiment against your own trade inside the service.