Mid cap is a tier in the informal classification system investors use to sort cryptocurrencies by size and risk, calculated by multiplying a coin's price by its circulating supply (see market capitalization). A project moves into the mid-cap band once its total value climbs past the small-cap threshold but has not yet reached the scale of established leaders like Bitcoin or Ethereum.
Because mid caps are smaller than the top few assets, their order books are thinner, so large buy or sell orders can move the price more than they would for a heavily traded coin. That extra volatility is part of the appeal: many mid-cap projects have already shipped working products, secured exchange listings, and built an active developer or user base, yet still have meaningful room to grow if adoption expands. Coins that regularly appear in this range include established layer-1 and infrastructure projects such as Chainlink, Litecoin, or Polkadot, though the exact list shifts constantly as prices move.
Mid-cap status is not permanent. A sharp rally can push a coin into large-cap territory, while a prolonged bear market or a failed roadmap can drag it down into small-cap range. Investors often treat the tier as a quick filter for diversification, balancing a core of large-cap holdings against mid-cap altcoins for growth potential and smaller bets for higher, riskier upside. On its own, the label says nothing about a project's fundamentals and should be weighed alongside liquidity, token supply schedule, and real-world usage. No regulator standardizes the thresholds, so different data platforms may draw the boundary slightly differently, though roughly one to ten billion dollars remains the most widely used convention.