$BTC Bitcoin (BTC) is often traded with other cryptocurrencies, such as Ethereum (ETH), Tether (USDT), or Binance Coin (BNB). These trading pairs allow investors to compare the relative value between two cryptos and take advantage of market fluctuations. For example, in the BTC/USDT pair, BTC is the crypto traded against USDT, a stablecoin pegged to the dollar. Crypto-crypto pairs offer diversification opportunities but also present increased risks related to volatility. The choice of a pair depends on the investor's goals, risk level, and strategy.