TCP Data
Altcoin Season Index
See whether leading altcoins are outperforming Bitcoin across the rolling 90-day window used by CoinMarketCap’s Altcoin Season Index.
Current Index
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Updated: Fetching… UTC
Source: CoinMarketCap
Market Regime
0–25 Bitcoin Season · 26–74 Neutral · 75–100 Altcoin Season
—/100
Current market regime unavailable.
Historical Index
CoinMarketCap’s published Altcoin Season Index history.
Altcoin Market Cap
Yearly High
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Yearly Low
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What Is Altcoin Season?
Altcoin season is a market regime in which a broad group of large altcoins outperform Bitcoin over a defined period. It does not mean every altcoin is rising, and it should not be treated as a prediction of future returns.
How Is This Index Calculated?
CoinMarketCap compares the rolling 90-day performance of the top 100 eligible coins with Bitcoin, excluding stablecoins and wrapped or asset-backed tokens. A reading of 75 or above indicates Altcoin Season; 25 or below indicates Bitcoin Season.
How Should You Read It?
The index measures breadth of relative performance, not market direction. A high reading means many eligible altcoins have beaten Bitcoin over 90 days; it does not guarantee that altcoins will continue to outperform.
Methodology & Source
The Crypto Public does not calculate or modify the underlying index. TCP retrieves CoinMarketCap’s published Altcoin Season Index through its public keyless API and presents the current reading, history and market context with transparent source attribution.
Index data source: CoinMarketCap Altcoin Season Index. Presentation and explanatory context: The Crypto Public.
For informational and educational purposes only. This index is not investment advice and should not be interpreted as a buy or sell signal.