#TradingPairs101 Fiat/crypto pairs: such as BTC/USD or ETH/EUR. Common in regulated exchanges with fiat on-ramps.

Choosing the right pair affects volume, liquidity, and trading costs. It can also imply indirect exposure to the quoted asset. For example, if you trade in a pair against BTC and BTC falls, your trade may be affected even if your altcoin did not move.