$BTC represents BTC$/USDC as the trading of Bitcoin (BTC) against the stable digital dollar currency (USDC). In this market, investors buy or sell Bitcoin using USDC, which maintains its value close to the US dollar. This pair is suitable for traders looking to capitalize on Bitcoin's price volatility while keeping their funds stable by using USDC instead of traditional dollars. This type of trading is common on cryptocurrency platforms, offering greater speed and flexibility compared to traditional bank transfers.