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The Altcoin Season Index measures market performance against Bitcoin. Current data shows mixed signals as traders watch for capital rotation.
The Altcoin Season Index, a benchmark used to gauge whether alternative cryptocurrencies are outperforming Bitcoin, currently sits at approximately 35, indicating that a broad market rotation has not yet begun [3]. This metric serves as a primary tool for investors to determine if the market has entered a phase where the majority of digital assets are generating superior returns compared to the market leader [1].
Key takeaways
Coverage is mostly measured — 15 of 22 reports stay neutral.
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An altcoin is any cryptocurrency other than Bitcoin, as Bitcoin was the first to capture global attention.
The index compares the 90-day price performance of the top 100 cryptocurrencies, excluding stablecoins and asset-backed wrapped tokens, against Bitcoin.
During this period, altcoins typically experience rapid price appreciation, increased market dominance, and higher trading volumes, often driven by market optimism and FOMO.
AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 3 outlets · Jun 12, 2026 · How we report
Yes, Ethereum is included in the altcoin mix for the purpose of the CoinMarketCap Altcoin Season Index.