Altcoin is short for “alternative coin” — any cryptocurrency other than Bitcoin. Ethereum, Solana, Cardano, Ripple (XRP), Dogecoin, and thousands of other tokens are all altcoins. The term emerged in the early years of crypto when Bitcoin was the sole established asset and everything else was an “alternative.” Today, with over 20,000 altcoins in existence, the category is vast and highly varied — ranging from legitimate Layer 1 blockchains with billions in development investment to outright scam tokens created in minutes.
Altcoins are typically grouped by category: Layer 1 blockchains (Ethereum, Solana, Avalanche) — base-layer networks competing with or complementing Bitcoin; DeFi tokens (Uniswap, Aave, Compound) — governance tokens for decentralised finance protocols; Stablecoins (USDT, USDC) — pegged to fiat currencies; Meme coins (Dogecoin, Shiba Inu) — community-driven with high volatility; and Utility tokens — tokens used within specific platforms or ecosystems. Altcoins tend to be significantly more volatile than Bitcoin, and most follow a pattern of rising sharply when Bitcoin is bullish (the “altseason”) and falling harder than Bitcoin during bear markets.
Investing in altcoins requires deeper research than Bitcoin — assess the team, tokenomics, use case, and market cap carefully. The vast majority of altcoins launched during bull markets lose 95%+ of their value in subsequent bear markets.
Example: During the 2021 bull market, Solana (SOL) rose from $1.50 in January to $260 in November — a 17,000% gain. By late 2022, it had fallen back to $8, a 97% decline from peak. Classic altcoin volatility in both directions.
Learn more: Investopedia — What is an Altcoin?
