Two cryptocurrencies paired together for ease of swapping. Supported by the decentralized crypto exchanges (DeXes), crypto trading pairs enable people to swap one crypto for another and pay a single transaction fee. Otherwise, the first crypto is sold for fiat, which is used to buy the second crypto, incurring two fees.
Trading Pair Examples
Examples of crypto trading pairs are BTC/ETH (bitcoin/ether) and BTC/USDT (bitcoin/Tether). The latter is a crypto-to-stablecoin pair. See stablecoin
Arbitrage means buying low on one exchange and selling at a higher price on another. This is commonly done by stock market and currency traders, and crypto traders can also take advantage of price discrepancies between the exchanges. Trading pairs enable quick conversion between cryptos, and in a highly volatile market, speculators must make fast trades to make money. See crypto liquidity pool
and crypto glossary