$ETH $ETH A pair consists of two assets exchanged with each other, formatted as 'Asset A / Asset B'. Asset A is the base (which is bought/sold), and Asset B is the quote (used for the transaction). For example, $BTC / USDT means trading Bitcoin against Tether. Common stablecoins are stablecoins (USDT, BUSD) for their stability, or major cryptocurrencies (BTC, ETH) for access to altcoins. The chosen pair impacts liquidity, volatility, and strategy. Stablecoin pairs offer predictability, while BTC/ETH pairs expose you to the movements of both assets. Always consider the liquidity and volume of a pair to perform efficient trades.