$USDC

The BTC/USDC pair represents trading between Bitcoin (BTC) and USD Coin (USDC). USDC is a stablecoin, meaning it's a cryptocurrency pegged to the US dollar, which means its value is generally stable and equals about 1 USD.

When trading BTC/USDC, you buy or sell Bitcoin using USDC as the reference currency. It's a very popular pair because it allows investors to enter or exit the Bitcoin market while maintaining some stability thanks to the USDC stablecoin.