This FAQ explains the bitcoin korku endeksi (also known as the Crypto Fear & Greed Index) in simple terms. You'll learn what it measures, how to read it, and how beginners can use it in their crypto journey.

What is the bitcoin korku endeksi?

The bitcoin korku endeksi, also known as the Crypto Fear & Greed Index, is a numerical and graphical indicator that measures the current sentiment of bitcoin investors on a scale from 0 to 100.

It is called korku endeksi in Turkish, meaning fear index, and it moves between two extremes: extreme fear (0-24) and extreme greed (75-100). The index is widely used by crypto beginners to get a quick read on whether the market feels bullish or bearish.

How is the bitcoin korku endeksi calculated?

The bitcoin korku endeksi is calculated by combining several data points, each weighted differently, to create a single sentiment score.

The main components used by the most popular version (Alternative.me) include volatility (25%), market momentum/volume (25%), social media (15%), surveys (15%), dominance (10%), and Google search trends (10%). These inputs are normalised and averaged, then mapped to a 0-100 scale. Keep in mind that the calculation is proprietary and may differ slightly between providers.

Where can I see the bitcoin korku endeksi?

You can see the bitcoin korku endeksi on several free websites and crypto platforms.

The most well-known source is Alternative.me, which publishes the daily Crypto Fear & Greed Index. You can also find it on CoinMarketCap, TradingView, and many major crypto exchanges like Binance or Coinbase in their market overview sections. For beginners, it's best to start with Alternative.me because it has a simple chart and explains index values in clear language.

Why does the bitcoin korku endeksi matter for beginners?

The bitcoin korku endeksi matters for beginners because it helps you avoid emotional decisions and gives you a simple way to understand market moods.

When you're new to crypto, it's easy to buy during hype (greed) and panic-sell during crashes (fear). The index acts as a reality check, reminding you that extreme fear often coincides with good buying opportunities, while extreme greed can signal a bubble. However, it is not a financial tool for precise trading; think of it as a quick sentiment thermometer, not a guaranteed signal.

When should I use the bitcoin korku endeksi to buy or sell?

Many beginners use the bitcoin korku endeksi as a contrarian indicator: buy during extreme fear and sell during extreme greed.

Historically, extreme fear (scores below 25) has often appeared near local price bottoms, while extreme greed (scores above 75) has appeared near local tops. That said, the index is by no means a precise timing tool, and prices can stay irrational for a long time. A safer approach is to combine the index with other analysis and dollar-cost averaging.

What is a good bitcoin korku endeksi level?

There is no single 'good' level; it depends on your strategy and timeline.

For long-term investors, an index in the fear zone (0-49) can be attractive because bitcoin tends to be undervalued when panic dominates. For short-term traders, levels above 75 (extreme greed) are often considered a warning sign to take profits. As a rough guide: 0-24 extreme fear, 25-49 fear, 50-74 neutral, 75-100 extreme greed. Many beginners prefer to start buying only when the index falls below 30.

Is the bitcoin korku endeksi reliable for price prediction?

The bitcoin korku endeksi is not a reliable price predictor by itself, but it can be a helpful sentiment gauge.

Historical observations show that extreme readings sometimes correlate with reversals, but the index has no direct cause-and-effect relationship with future prices. It's better used as a supporting tool, not a standalone forecast. For example, a high greed score can stay high while prices keep rising during a bull run. Treat the index as one of many signals.

How is the bitcoin korku endeksi different from other sentiment indicators?

The bitcoin korku endeksi differs from other sentiment indicators because it combines multiple data sources into one easy score, rather than focusing on a single signal.

For example, the Put/Call ratio only looks at trading options, while the Bitcoin Dominance index measures market share. The korku endeksi blends volatility, volume, social media, surveys, and search trends into a single 0-100 number. That makes it more beginner-friendly and less noisy than raw metrics, but it also means you lose the detail of individual data points.

Final Thoughts

The bitcoin korku endeksi is a useful way for beginners to understand market sentiment without drowning in complex data. It helps you notice when emotions are running high, whether that's extreme fear during a crash or extreme greed during a rally.

Remember that this index is a sentiment indicator, not a crystal ball. Use it to guide your own research and to avoid common emotional mistakes, but always pair it with your own risk management and investment plan.

If you're new to bitcoin, make it a habit to check the korku endeksi regularly as part of a broader learning routine. Over time, you'll learn how market psychology shapes price movements, and you'll be better prepared to make rational decisions.