$BTC "Trading PAIRs" or "cryptocurrency PAIRs" are assets that can be traded for each other on an exchange. Two typical examples of trading pairs are Bitcoin/Litecoin (BTC/LTC) and Ether/Bitcoin Cash (ETH/BCH). There are two main reasons for investors to understand trading pairs: Some cryptocurrencies can only be purchased with other cryptocurrencies, so knowledge of cryptocurrency pairs is essential for expanding your crypto holdings beyond the most common coins. And, knowledge of crypto trading pairs gives savvy crypto investors the chance to exploit arbitrage opportunities – that is, to profit from differences in asset prices between markets.