アルトコイン (Altcoin)

ビットコイン以外のすべての暗号資産（仮想通貨）の総称。

🌐 用語他の言語で:

English Deutsch Español Français 日本語 한국어 Polski Português Русский Türkçe Українська

イーサリアム（ETH）やソラナ（SOL）などはアルトコインとして始まりましたが、現在は独自の巨大なエコシステムを築いています。

        graph LR
  Center["アルトコイン (Altcoin)"]:::main
  Rel_how_to_buy_crypto["how-to-buy-crypto"]:::related -.-> Center
  click Rel_how_to_buy_crypto "/terms/how-to-buy-crypto"
  classDef main fill:#7c3aed,stroke:#8b5cf6,stroke-width:2px,color:white,font-weight:bold,rx:5,ry:5;
  classDef pre fill:#0f172a,stroke:#3b82f6,color:#94a3b8,rx:5,ry:5;
  classDef child fill:#0f172a,stroke:#10b981,color:#94a3b8,rx:5,ry:5;
  classDef related fill:#0f172a,stroke:#8b5cf6,stroke-dasharray: 5 5,color:#94a3b8,rx:5,ry:5;
  linkStyle default stroke:#4b5563,stroke-width:2px;

🕸️ Open in Universe

🧒 5歳でもわかるように説明

ビットコインが「デジタル界の金」なら、アルトコインは銀や銅、あるいは特定のサービスで使える「チケット」のようなものです。

🤓 Expert Deep Dive

The 'Altcoin Beta' is the defining characteristic for portfolio managers in crypto. Altcoins generally exhibit a beta > 1 relative to Bitcoin, meaning they amplify Bitcoin's movements in both directions. A core metric for timing the altcoin market is 'Bitcoin Dominance' (BTC.D); when BTC.D peaks and begins to trend downward while the total market cap stays stable or increases, it signals the onset of an Altcoin season.

Market Microstructure & Liquidity:
Altcoins suffer from the 'Liquidity Gap.' While Bitcoin has hundreds of billions in daily volume, Altcoins often have thin order books. This results in 'Positive Slippage' during hype cycles and 'Liquidation Cascades' during crashes. Traders also monitor the 'ETH/BTC' pair, as it often leads the rest of the altcoin market. Technically, most altcoins today are built as ERC-20 (Ethereum) or SPL (Solana) tokens rather than independent blockchains, relying on the 'Shared Security' of the parent chain. This has shifted the definition of 'Altcoin' from 'alternative chain' to 'alternative asset' within a modular ecosystem.

🧒 5歳でもわかるように説明

🤓 Expert Deep Dive

📚 出典