$BTC $BTC is the ticker symbol for Bitcoin, the first and most well-known cryptocurrency. It is:

Decentralized – Not controlled by any government or central bank

Limited supply – Only 21 million BTC will ever exist

Used for – Digital payments, store of value, and increasingly as a hedge against inflation

Runs on – The Bitcoin blockchain, secured by a Proof-of-Work consensus mechanism

Price can be very volatile and is influenced by demand, regulation, market sentiment, and macroeconomic factors.