The Crypto Fear & Greed Index is the single most cited sentiment indicator in cryptocurrency markets. Built on a 0-to-100 scale, it compresses six different market signals — volatility, momentum, social media chatter, Bitcoin dominance, search trends, and investor surveys — into a single readable number. As of today the index reads 29, squarely in "Fear" territory. That number is not a forecast. It is a snapshot of collective market positioning, processed through a publicly documented methodology and published daily since February 2018. Traders use it as a contrarian compass: when fear is extreme, opportunities historically emerge; when greed is euphoric, caution often pays. Reading this guide will not make you a profitable trader — but it will help you stop confusing emotion with information.
What Is the Crypto Fear & Greed Index?
The Crypto Fear & Greed Index, first published in February 2018, is a daily measure of cryptocurrency market sentiment expressed as a number from 0 (maximum fear) to 100 (maximum greed). It is adapted from the traditional stock-market sentiment index concept, but rebuilt with crypto-native data sources like Bitcoin dominance and social media sentiment.
The index produces a single integer each day, accompanied by a human-readable label ("Extreme Fear", "Fear", "Neutral", "Greed", "Extreme Greed") and updates roughly every 24 hours. Unlike price-based indicators that tell you where the market HAS been, sentiment indicators reveal how market participants FEEL about the current state — and emotion is what tends to drive the next move, not the previous one.
The methodology focuses on Bitcoin specifically because BTC dominates crypto market sentiment. When Bitcoin sentiment shifts dramatically, altcoins typically follow with a 1-3 day lag and amplified magnitude. That makes the BTC-centric index a reasonable proxy for overall crypto market mood, even though it does not directly measure individual altcoin sentiment.
How the Fear & Greed Index Is Calculated
The index is a weighted combination of six market inputs, each normalized to a 0-100 scale before being averaged. The composition is publicly documented, though the index provider reserves the right to adjust component weights over time as market structure evolves.
| Component | Weight | What It Measures |
|---|---|---|
| Volatility | 25% | Current BTC volatility vs 30 and 90-day averages — high volatility relative to recent history = fear |
| Market Momentum & Volume | 25% | Current trading volume and price momentum vs 30 and 90-day averages — strong volume + rising price = greed |
| Social Media | 15% | Social media engagement on crypto hashtags — unusually high engagement = greed |
| Surveys | 15% | Direct sentiment polls of crypto investors (currently paused but historically weighted) |
| Bitcoin Dominance | 10% | BTC market cap as % of total crypto — rising dominance often signals fear as capital flees alts to safety |
| Google Trends | 10% | Search volume for crypto-related queries — spiking searches for "Bitcoin price" = euphoria signal |
Each component is normalized to a 0-100 scale before being averaged with the listed weights. Volatility and momentum carry the most weight at 25% each because they are the highest-frequency, lowest-noise signals. Social media and surveys, while interesting, are more easily manipulated and therefore weighted less. The final number is the rounded weighted average of the six normalized inputs.
The Surveys component has been paused intermittently since 2021 due to insufficient response volume; when paused, its weight is redistributed proportionally to the other five components. A brief methodology note is published alongside the daily reading describing any active component changes.
How to Read Each Zone
The 0-100 scale is divided into five named zones. The boundaries are visual conventions, not hard mathematical breaks — a reading of 26 is almost identical in meaning to 24, but they appear in different categories on most dashboards.
| Zone | Range | Typical Market Behavior |
|---|---|---|
| Extreme Fear | 0-25 | Capitulation. Sellers exhausted. Historically aligned with major bottoms within 30-60 days. |
| Fear | 25-45 | Cautious positioning. Sidelined capital growing. Contrarian opportunities emerging but not confirmed. |
| Neutral | 45-55 | Balanced positioning. Neither aggressive accumulation nor distribution. Often a transitional zone. |
| Greed | 55-75 | Risk-on. Capital deploying actively. Sustained rallies often originate here, but late-stage entries amplify drawdown risk. |
| Extreme Greed | 75-100 | Euphoria. New entrants chasing tops. Historically aligned with major tops within 14-45 days. |
A common misreading: assuming the index is symmetric — that 80 is "as far from neutral" as 20. In practice, the Greed/Extreme Greed range tends to last longer in bull markets because retail FOMO sustains elevated readings for weeks. The Extreme Fear range tends to be shorter and sharper — capitulation happens in days, not weeks. This is why "buy fear" is conventional wisdom but "sell greed" requires more patience to execute correctly.
The crucial reading skill is recognizing direction of travel, not absolute level. A reading of 30 declining from 50 is bearish — sentiment is deteriorating. A reading of 30 rising from 10 is bullish — sentiment is recovering from capitulation. The absolute number tells you where the market is; the trajectory tells you where it is going.
Historical Extremes: What the Data Actually Shows
Across 3,039 daily snapshots between February 2018 and June 2026, the Crypto Fear & Greed Index has spanned its full 0-100 range. The data lets us anchor today’s reading in historical context — something the daily news cycle rarely does well.
The all-time high reading of 95 (Extreme Greed) was recorded on June 26, 2019, during the peak euphoria of that year’s rally — Bitcoin had just printed $13,800 after recovering from the 2018 crash. The index sustained readings above 80 for several weeks, and the trap was textbook: within 90 days, Bitcoin had crashed nearly 50% to under $7,000. Buyers who entered during Extreme Greed faced months of underwater positions.
The all-time low reading of 5 (Extreme Fear) came on August 22, 2019 — just two months after the ATH greed peak. It was followed by gradual price recovery, though Bitcoin still spent another year carving out the deeper macro bottom near $3,800 in March 2020 during the COVID flash crash. That March 2020 capitulation also pushed the index into single digits for days, marking another generational entry zone in hindsight.
The November 2021 Bitcoin ATH near $69,000 saw the index sustained in the high-80s for weeks. The 2022 bear market produced repeated readings in the 10-20 range, with the post-FTX capitulation in November 2022 pushing back to single digits. Each Extreme Fear cluster has been followed by months — not days — of base building before durable recovery. The pattern is reliable; the timing requires patience that most retail traders lack.
Today at 29 (Fear): the index sits well below the 50-period midpoint but above the historical extreme zone. It signals cautious positioning without capitulation — typical of a market in transition rather than at an inflection point.
How Traders Actually Use the Index
The Crypto Fear & Greed Index is not designed as a standalone trading signal. It is a contrarian sentiment overlay — most useful when combined with price action, on-chain data, and other macro indicators. Used in isolation, it produces too many false signals during sustained trends (the "stays oversold longer than you can stay solvent" problem).
The contrarian framework
The classic contrarian principle: be fearful when others are greedy, and greedy when others are fearful. In Fear & Greed terms: when the index drops below 25 (Extreme Fear) and stays there for multiple consecutive days, the market is showing capitulation behavior. Contrarian buyers begin accumulating. When the index climbs above 75 (Extreme Greed) and persists, late-stage buyers are still chasing — contrarian sellers begin taking profits or hedging.
The confirmation rule
Single-day extreme readings are noise. The index needs to maintain extreme levels for 3-5+ consecutive days before signaling reliable positioning shifts. Even then, position-sizing matters: a fully sized contrarian bet during Extreme Fear can be obliterated if the fear deepens further before reversing. Experienced traders scale into positions across multiple Extreme Fear days rather than buying once at "the bottom."
Cross-referencing with structural indicators
Fear & Greed gains predictive value when combined with structural indicators. Extreme Fear combined with Stablecoin Dominance peaking above 12% has historically marked cycle bottoms within weeks. Extreme Greed combined with a Pi Cycle Top crossover has historically marked cycle tops within days. Neither indicator alone is reliable; the confluence amplifies signal quality.
What it cannot tell you
The index does not measure which altcoin to buy, when exactly to enter or exit, how big to size your position, or whether the current cycle will mirror prior cycles. It tells you where collective sentiment currently sits — nothing more. Treat it as input, not instruction.
Limitations and Honest Caveats
- Bitcoin-centric — the index is calibrated on BTC sentiment and may not capture altcoin-specific dynamics, particularly during alt-season cycles when altcoins decouple from BTC
- Lagging by component — volatility and momentum components are inherently backward-looking; the index reflects what HAS happened, not what WILL
- Social media manipulation — the 15% social media component is susceptible to coordinated bot activity, especially during major influencer campaigns or paid promotion cycles
- Surveys component instability — the 15% surveys input has been paused multiple times since 2021 due to low response volume, shifting effective weights without warning
- Post-2024 market structure — Bitcoin spot ETF flows from 2024 onwards have introduced institutional capital patterns that historical sentiment data does not capture; whether the index works the same way in this new regime is an open question
- Small sample at extremes — only a handful of true Extreme Greed (above 90) and Extreme Fear (below 10) events exist in the dataset, making statistical conclusions about "what happens next" unreliable
Related Sentiment and Structure Indicators
Fear & Greed becomes substantially more useful when read alongside structural indicators that measure where capital actually IS, not just how participants FEEL. AltcoinSignal tracks several complementary live indicators that pair naturally with the sentiment reading.
- Altcoin Season Index — measures whether top altcoins are outperforming Bitcoin over a 90-day window. Combined with Extreme Fear on Fear & Greed, it has historically marked altcoin accumulation zones
- Bitcoin Dominance — BTC share of total crypto market cap. High dominance during Extreme Fear signals capital fleeing to BTC safety; falling dominance during Greed signals capital rotating into alts
- Stablecoin Dominance — share of crypto market cap held in stablecoins. Rising stablecoin dominance during Fear means traders are parking capital, building dry powder for rotation back into risk
- ETH/BTC Ratio — Ethereum performance versus Bitcoin. Often confirms or contradicts altcoin season — when both alt-season is high AND ETH/BTC is rising, the rotation is broad-based
Continue reading: Bitcoin Dominance
BTC dominance is the other half of the sentiment picture. When fear is extreme AND dominance is rising, capital is consolidating in BTC — read the full guide.
Continue reading: Altcoin Season Index
Sentiment sets the mood; the Altcoin Season Index measures whether capital is actually rotating into alts. Extreme Fear with a low season index marks the deepest accumulation zones — read the full guide.
Track the Live Fear & Greed Index
See the current reading, historical chart back to 2018, and how today’s sentiment compares to past extremes.
Frequently Asked Questions
What is a good Fear & Greed Index level to buy?
Historically, readings below 25 (Extreme Fear) sustained for 3-5+ days have aligned with favorable accumulation zones — though the lowest absolute readings (single digits in 2019 and 2022) only came after weeks of decline. There is no specific number that guarantees a good entry. Most disciplined contrarian buyers scale in across multiple Extreme Fear days rather than waiting for a single "bottom" reading.
How often does the Fear & Greed Index update?
A new reading is published once per UTC day, typically updating around midnight UTC. The intraday components (volatility, momentum) shift continuously, but the published index is a daily snapshot. AltcoinSignal’s live tool pulls the current value hourly and stores the daily history table for long-term charting back to February 2018.
Is the Fear & Greed Index accurate?
Accuracy depends on what you mean. The index accurately measures the six inputs it claims to measure — there is no manipulation of the underlying calculation. Whether it accurately PREDICTS future price action is a different question. Backtested across the 2018-2026 sample, Extreme Fear readings have preceded multi-month rallies more often than not, but not every single time. Treat it as a probabilistic signal, not a guarantee.
What is the difference between Fear and Extreme Fear?
The 25 boundary between Fear and Extreme Fear is a visual convention rather than a hard inflection. Behaviorally, "Fear" (25-45) reflects cautious positioning and risk reduction; "Extreme Fear" (below 25) reflects panic selling and capitulation. The lower the reading, the higher the historical likelihood of medium-term reversal, but transitions through these zones are gradual rather than discrete events.
Can I use it for altcoins specifically?
Indirectly. The index is calibrated on Bitcoin sentiment, but BTC sentiment typically leads altcoin sentiment by 1-3 days during transitions. When Fear & Greed enters Extreme Greed and BTC dominance is falling, altcoins are usually in the late stages of their rally. When Extreme Fear coincides with rising BTC dominance, altcoins are typically in deeper drawdown than BTC itself. For altcoin-specific timing, read the index alongside the Altcoin Season Index.
Why does the Fear & Greed Index sometimes diverge from the price?
Price and sentiment can diverge because the index also incorporates non-price inputs (social media, search trends, surveys). A market can rise gradually without producing greed if participants remain cautious — a sustained "wall of worry" rally. The reverse also happens: choppy sideways price with no clear direction often produces unstable sentiment readings because the volatility and momentum components flicker.