Altcoin

Altcoin — short for "alternative coin" — is a catch-all term for any cryptocurrency that is not Bitcoin. The term emerged in the early days of crypto when new projects launched as alternatives to Bitcoin, each attempting to improve upon Bitcoin's design or serve a different purpose. Today, the altcoin universe encompasses thousands of cryptocurrencies with wildly different technologies, use cases, and risk profiles.

Altcoins can be broadly categorized by function: platform coins (ETH, SOL, ADA) power smart contract blockchains; payment coins (LTC, XRP) focus on fast, low-cost transactions; privacy coins (XMR, ZEC) emphasize transaction anonymity; utility tokens provide access to specific services or protocols; governance tokens grant voting rights in decentralized organizations; and memecoins (DOGE, SHIB) are community-driven tokens often lacking fundamental utility.

From an investment perspective, altcoins generally carry higher risk and higher potential reward than Bitcoin. They tend to be more volatile, less liquid, and more susceptible to project failure. The term "altseason" refers to periods when altcoins as a group outperform Bitcoin, typically occurring after Bitcoin establishes an uptrend and capital rotates into smaller assets seeking higher returns. The Bitcoin Dominance metric — Bitcoin's share of total crypto market cap — is commonly used to gauge the relative strength of altcoins versus Bitcoin.