$BTC The $BTC coin pair refers to trading pairs that use Bitcoin (BTC) as the base or quote currency on crypto exchanges. Common pairs include BTC/USDT, BTC/ETH, and BTC/USD. These pairs allow users to trade BTC against fiat or other cryptocurrencies. BTC pairs are highly liquid and widely used for price discovery, market entry, and arbitrage. They often serve as benchmarks in the crypto market, influencing broader trading trends and sentiment.