When the market sentiment index plunges to 'extreme fear,' buy signals flash on the screens of the world's top cryptocurrency investors, signaling not a moment of panic but an impending opportunity.
On February 6, 2026, the Crypto Fear & Greed Index plummeted to 5, hitting a record low since its inception! Market panic fully erupted, with Bitcoin briefly dropping to $60,000. However, history tells us that extreme fear often presents an excellent opportunity for strategic investment.
In the world of cryptocurrencies, price fluctuations are severe, and investor sentiment often fluctuates like a roller coaster. As a novice, you may frequently hear advice such as “buy in fear, sell in greed,” but how do you determine whether the market is in “fear” or “greed”? This is where the Crypto Fear & Greed Index comes into play.
This index acts as a “thermometer” for market sentiment, helping you avoid emotionally driven decisions and preventing you from chasing highs or cutting losses at lows.
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This article will start with basic concepts, explaining the meaning and calculation method of the Fear & Greed Index, its relationship with BTC, and offering practical guidance for novice investors.
1. Concept, Meaning, and Calculation Method of the Fear & Greed Index
First, what exactly is the Fear & Greed Index? Simply put, it is a tool used to measure overall sentiment in the cryptocurrency market, initially introduced by Alternative.me in 2018 specifically for the crypto market. Later, other websites also launched this indicator, albeit with slight variations in calculation methods.
The Fear & Greed Index provided by Futu ranges from 0 to 100: 0 represents “Extreme Fear,” where investors are like frightened birds, fearing further price crashes; 100 represents “Extreme Greed,” where everyone acts euphorically, aggressively chasing gains out of fear of missing opportunities.
Based on different ranges of the index, we can roughly classify sentiment as follows:
- 0-20: Extreme Fear (The market may be oversold, indicating potential buying opportunities)
- 20-40: Fear (Investors are cautious, and prices may be subdued)
- 40-60: Neutral (No clear direction in investor sentiment, prices may fluctuate)
- 60-80: Greed (Market optimism prevails as prices rise)
- 75-100: Extreme Greed (The market may be overheated, suggesting potential selling risks)
The significance of this index lies in its reminder that market behavior is often driven by emotions. As the renowned investor Warren Buffett once said, 'Be fearful when others are greedy and greedy when others are fearful.'
For beginners, this can help you avoid FOMO (Fear Of Missing Out) and panic selling, making investment more akin to a science rather than gambling.
So, how is this index compiled? It is not based on subjective assumptions but calculated automatically every day using multidimensional data. The compilation method includes five key factors, which are processed through specific calculations to derive the final score.
1. Price Momentum Index: By analyzing the price performance and trading volumes of the top ten cryptocurrencies by market capitalization (excluding stablecoins), trends in assets such as Bitcoin (BTC), Ethereum (ETH), and Ripple (XRP) are captured. This index provides a more comprehensive reflection of market sentiment because price fluctuations reveal the levels of fear and greed in the market. High trading volumes accompanying price increases indicate greed; low volumes accompanying declines indicate fear.
2. Volatility: Given the significant impact of volatility on market sentiment, the Crypto Fear & Greed Index incorporates metrics like implied volatility to capture the fluctuations of various digital assets. High volatility (e.g., sharp rises or falls) typically indicates fear, as market instability makes people afraid of losses.
3. Derivatives Market: Options contracts can reflect market participants' expectations for future returns. The ratio of put options to call options is used to infer the sentiment of retail participants in the options market. A higher ratio of put options to call options indicates widespread market panic, suggesting that retail investors anticipate a bear market or a potential market crash in the future.
4. Market Composition: Bitcoin's relative total value in the market is an important indicator of market sentiment. The Stablecoin Supply Ratio (SSR) measures the ratio of Bitcoin’s market capitalization to the total market capitalization of major stablecoins. A lower SSR value indicates that the supply of stablecoins is relatively large compared to Bitcoin, while a higher SSR value suggests stronger Bitcoin dominance. An increase in Bitcoin’s share indicates fear (investors flocking to “safe” BTC), whereas a decrease indicates greed (investors chasing high-risk altcoins).
5. Search and Discussion Data: Analyze social trend keyword search data, such as phrases like “cryptocurrency surge,” to assess market sentiment. Collect valuable page view and user interaction data to gain deeper insights into market sentiment, investor interest, and emerging trends.
II. The Relationship Between the Fear & Greed Index and BTC Price – Finding Opportunities Amid Extreme Fear
The Fear & Greed Index is $Bitcoin (BTC.CC)$ highly correlated with the price of Bitcoin, typically exhibiting a positive relationship – when the index is low, the BTC price tends to be at a trough; when the index is high, the BTC price reaches a peak. This is because sentiment drives the market: fear leads to sell-offs and falling prices, while greed fuels buying sprees and rising prices.
Particularly when the index falls into the extreme fear zone (<20), it is often due to macroeconomic events causing panic, leading to sharp declines in cryptocurrency prices. However, historical evidence shows that these lows are often “golden opportunities,” where buying during such times can yield substantial returns once the market rebounds. Conversely, when the index exceeds 60, the risk of a bubble burst increases, often signaling that the BTC price has peaked in the short term.
Our editor has compiled instances from 2025 where the Fear & Greed Index dropped to the panic zone (<20), providing examples of how novice investors profited from fear. These cases are based on real historical data. Note that this is retrospective analysis, and investing carries risks; past performance is not indicative of future results.
Case One: On March 11, 2025, the Fear & Greed Index dropped to 15, with the BTC price at approximately $78,500.
Intensive adjustments to tariff policies by U.S. President Trump triggered significant market volatility. On March 7, 2025, Trump announced that tariffs would be implemented reciprocally starting April 2. Under the weight of these tariff measures, investor confidence became severely polarized. On March 10, the U.S. stock market saw deepened declines, with the S&P 500 Index falling by 2.7% and the Nasdaq Index, which is heavily weighted in technology stocks, dropping by 4%. Starting March 10, the Fear & Greed Index entered the extreme panic zone, hitting a low of 15 on March 11.
If investors bought Bitcoin at the bottom on March 11 and sold when the Fear & Greed Index entered the next greed range (on May 9, with the index at 70), they could achieve an investment return of approximately 29%.
Case Two: On April 9, 2025, the Fear & Greed Index dropped to 15, with the Bitcoin price at around $76,300.
On April 9, 2025, the White House Press Secretary announced that the additional 104% tariff on China had taken effect at noon Eastern Time. Amid the shadow of tariffs, the Fear & Greed Index once again declined to a low point, and Bitcoin also experienced a significant drop.
If investors bought Bitcoin at the bottom on April 9, 2025, and sold when the Fear & Greed Index entered the next greed range (on May 9, with the index at 70), they could achieve an investment return of approximately 34%.
III. Limitations of the Fear & Greed Index
The Fear & Greed Index provides investors with a simple and clear overview of market sentiment, which can serve as a potential contrarian trading signal and help new investors understand how fear and greed influence the market.
However, the index has evident limitations. First, it primarily reflects current sentiment rather than future market trends. A high 'greed' score does not guarantee a market crash, just as a high 'fear' score does not ensure a rebound.
Second, although it reflects broader cryptocurrency sentiment, it largely relies on Bitcoin data, meaning the specific sentiment for altcoins may differ significantly. Additionally, the factors composing the index might fail to capture every nuance of market sentiment.
Based on historical cases, the bottom-buying signals provided by the Fear & Greed Index during extreme panic zones tend to be highly accurate, but it is challenging to sell at the peak during topping phases. For example, in Case Two, after buying at the bottom on April 9, and selling Bitcoin when the Fear & Greed Index entered the greed zone, Bitcoin briefly consolidated before resuming its upward momentum in early July. At this time, the Fear & Greed Index re-entered the greed zone, and the Bitcoin price hit a new all-time high in July.
Thus, the Fear & Greed Index is not infallible.
IV. Practical Guide for Novice Investors
For newcomers to the cryptocurrency market, the Fear & Greed Index can serve as an "emotional barometer" to assist in decision-making and can be combined with other indicators such as price trends and technical analysis for comprehensive investment judgment.
When the index enters the "Extreme Fear" zone (0-20), it may be prudent to consider establishing a Bitcoin long-term investment position in batches.
When the index reaches the "Greed" or "Extreme Greed" zone (60-100), consideration should be given to taking profits or reducing Bitcoin positions.
The most robust approach is to combine sentiment indices with technical analysis, fundamental analysis, and macro-environmental analysis. For example, when the Fear & Greed Index is low and the RSI indicator shows oversold conditions, this could signal a stronger buying opportunity.
Risk management is crucial. Even if the index indicates extreme fear, the market may continue to decline. Therefore, building positions in tranches, setting stop-loss orders, and establishing clear profit-taking plans are key to protecting capital.
Summary
As an investor, the core of cryptocurrency investment is not predicting prices but managing emotions. The Fear & Greed Index acts as your "emotional coach," helping you think contrarian: be bold when others are fearful and cautious when others are greedy.
When the Fear & Greed Index falls to its lowest level since its inception in June 2023, with a historical percentile of 0%, indicating extreme market fear, will fellow investors choose to seize the window of opportunity by positioning in spot assets, or will they consider the risk too high and continue to wait on the sidelines?
Editor/Doris
