What is market cap?
Market cap is a token's price multiplied by its circulating supply - a rough measure of its total market value.
A very low market cap means the token is early and tiny; a high one backed by thin liquidity can be misleading, because that price could not actually be realised if many holders sold at once.
PumpScore looks at market-cap tier and, more importantly, liquidity versus market cap, since a large cap supported by little liquidity is a warning sign.