$BTC The coin pair BTC, often represented as BTC/USD or BTC/ETH, refers to trading Bitcoin against another currency or cryptocurrency. It’s the most popular and widely traded pair in the crypto market. BTC/USD reflects Bitcoin’s price in US dollars, serving as a key indicator of market sentiment. BTC/ETH, on the other hand, shows Bitcoin's value relative to Ethereum, offering insights into altcoin strength. Traders use BTC pairs to hedge, speculate, or diversify portfolios. With high liquidity and global demand, BTC pairs remain central to crypto trading strategies across exchanges.