$BTC refers to Bitcoin, the world's first and most well-known cryptocurrency. Here's a quick breakdown:

1. What Is Bitcoin?

Bitcoin is a decentralized digital currency created in 2009 by an unknown person or group using the name Satoshi Nakamoto. It allows peer-to-peer transactions without the need for a central authority like a bank.

2. Key Features:

Blockchain Technology: All transactions are recorded on a public ledger (blockchain), making them transparent and immutable.

Limited Supply: Only 21 million bitcoins will ever exist, making it deflationary by design.

Mining: New bitcoins are created through a process called mining, where powerful computers solve complex puzzles.

3. Use Cases:

Digital money for goods and services

Store of value (often called "digital gold")

Speculative investment

Hedge against inflation (according to some investors)

4. Price Volatility:

Bitcoin's price is highly volatile. It has experienced massive bull runs followed by sharp corrections.

5. Risks:

Regulatory uncertainty

Security risks (e.g., wallet hacks)

Market manipulation and volatility