📚 Learn Crypto
Quick guides in plain language. Versão em português →
🐳 What are crypto "whales" and why do they matter?
In crypto, a whale is a wallet holding a huge amount of coins — hundreds or thousands of Bitcoin. Whales can be investment funds, exchanges, companies or early adopters.
Why do they matter? Because when a whale moves, the market feels it. Thousands of BTC flowing into an exchange can signal an intention to sell (downward pressure); coins leaving exchanges for private wallets suggest long-term accumulation. It's not a crystal ball — many transfers are internal — but watching whale flow adds context charts alone can't give you.
Our Whale Radar detects every Bitcoin transaction above 10 BTC in real time, straight from the blockchain. Our Telegram channel automatically alerts on whales above 250 BTC.
🧭 How to read the Fear & Greed Index
The Fear & Greed index condenses market sentiment into a number from 0 to 100, combining volatility, volume, social media and dominance:
- 0–20 · Extreme Fear — panic. Historically these levels often marked good buying zones ("buy when there's blood in the streets").
- 20–45 · Fear — pessimism, depressed prices.
- 45–55 · Neutral — indecision.
- 55–80 · Greed — optimism, fast rallies.
- 80–100 · Extreme Greed — euphoria. Frequently preceded sharp corrections.
Caution: the index is a thermometer, not a buy or sell order. It works best alongside your own research — and extremes can last for weeks. See today's value on the main page gauge.
👑 What is Bitcoin dominance?
BTC dominance is the share of the entire crypto market's value that belongs to Bitcoin. If the whole market is worth $2 trillion and Bitcoin is worth $1.1 trillion, dominance is 55%.
Why care? Because it tells the story of money inside the market: rising dominance means capital is seeking Bitcoin's relative safety (fear, or early cycle); falling dominance means money is flowing into altcoins — what many call "altseason", typically a higher risk-appetite phase.
📊 Seasonality: are some months better for Bitcoin?
Seasonality is an asset's tendency to behave similarly in certain calendar periods. For Bitcoin, some months have historically averaged positive returns (October is famous — "Uptober") while others tend to be weak (August and September, for example).
It's statistics, not a guarantee: every year has its own context (rates, regulation, halvings). But knowing the pattern helps calibrate expectations. CriptoRadar shows the average monthly return of the last 3 years, computed live from public data.
🔔 How to create free price alerts
In the Alerts section of the main page you can create alerts with no sign-up: pick the coin, the condition (price above, below, or 24h change) and the value. The alert is stored only in your browser and fires a notification while the site is open.
For 24/7 alerts even with the site closed, subscribe to our free Telegram channel: whales, sharp BTC/ETH moves, sentiment shifts and a daily summary.
⚠️ Note: all of this content is educational — not financial advice. Always do your own research (DYOR).