The coin pair $BTC typically refers to Bitcoin traded against another asset, such as BTC/USDT, BTC/USD, or BTC/ETH. These pairs show how much of the quote currency (e.g., USDT or USD) is needed to buy one Bitcoin. The most popular pair is BTC/USDT, widely used on exchanges like Binance, Coinbase, and Kraken. Traders use this pair for spot trading, futures, and margin trading. Price movements in BTC pairs often signal broader crypto market trends. Volume, volatility, and liquidity in BTC pairs can impact altcoin performance. Pairing BTC with other cryptocurrencies (like ETH or BNB) is common in crypto-to-crypto trading. BTC pairs remain a benchmark in digital asset markets due to Bitcoin’s dominant role and global acceptance.