$BTC A BTC coin pair refers to trading Bitcoin against another cryptocurrency on an exchange. For example, in a BTC/ETH pair, you're trading Bitcoin for Ethereum and vice versa. Coin pairs help traders compare the relative value of different cryptocurrencies. When you trade using a BTC pair, you are using Bitcoin as the base currency. This means you are buying or selling the quoted coin (like ETH, BNB, or ADA) using BTC. Many altcoins are paired with BTC due to its dominance and liquidity in the market. Traders use BTC pairs for arbitrage, technical analysis, and to gain exposure to various assets.