Altcoin
Any cryptocurrency other than Bitcoin. The term combines "alternative" and "coin" and encompasses thousands of different digital assets.
Why It Matters
Altcoins encompass any cryptocurrency other than Bitcoin and represent a diverse array of technology and market strategies. Understanding altcoins is essential for anyone looking to diversify their investment portfolio and explore emerging technologies.
Example
For example, Ethereum is an altcoin known for its smart contract capabilities, enabling developers to build decentralized applications. Investing in Ethereum might offer different opportunities than Bitcoin.
Beginner Context
As a beginner, knowing about altcoins is important because they can provide alternatives to Bitcoin with unique features. Exploring these alternatives can help you understand the vast landscape of cryptocurrencies.
Mike Starr
Founder, CryptoWizardTools · M.S. Organizational Management
Last reviewed: August 2026
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Bitcoin
The first and largest cryptocurrency by market capitalization, created in 2009 by an anonymous person or group using the pseudonym Satoshi Nakamoto. It operates on a decentralized proof-of-work blockchain.
Market Cap
Market Capitalization. The total value of a cryptocurrency calculated by multiplying its current price by the total circulating supply.
Memecoin
A cryptocurrency inspired by internet memes or jokes that typically has no inherent utility. Examples include Dogecoin, Shiba Inu, and Pepe.
Ethereum
The second-largest cryptocurrency by market capitalization and the leading smart contract platform. It enables developers to build decentralized applications and supports a wide ecosystem of DeFi protocols and NFTs.
Bitcoin Dominance
A metric that measures Bitcoin's market capitalization as a percentage of the total cryptocurrency market cap. When Bitcoin dominance rises, it often signals capital flowing from altcoins into Bitcoin, and vice versa.