Wiki/Altcoin Season Index: Your Guide to Crypto Market Trends
Altcoin Season Index: Your Guide to Crypto Market Trends - Biturai Wiki Knowledge
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Altcoin Season Index: Your Guide to Crypto Market Trends

The Altcoin Season Index is a crucial metric for understanding whether altcoins are outperforming Bitcoin. It helps investors identify market trends and make informed decisions about their cryptocurrency portfolios.

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Michael Steinbach
Biturai Intelligence
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Updated: 2/9/2026

Altcoin Season Index: Your Guide to Crypto Market Trends

Definition: The Altcoin Season Index is a market indicator that measures the relative performance of cryptocurrencies other than Bitcoin (altcoins) compared to Bitcoin itself. It helps investors gauge whether the market is currently favoring altcoins (an “altseason”) or Bitcoin.

Key Takeaway: The Altcoin Season Index helps investors identify and capitalize on periods when altcoins are outperforming Bitcoin, providing insights into market trends and investment opportunities.

Mechanics: How the Altcoin Season Index Works

The Altcoin Season Index isn't a single, universally defined metric, but the underlying principle remains consistent across different implementations. Typically, it involves analyzing the performance of a basket of altcoins over a specific timeframe, usually 90 days. Here's a breakdown of how it generally functions:

  1. Selection of Altcoins: An index provider (like CoinGlass or Bitget) selects a group of altcoins to track. This selection often includes the top 100 or more cryptocurrencies by market capitalization, excluding Bitcoin. The criteria for inclusion might vary, but liquidity and trading volume are key considerations.

  2. Performance Comparison: The performance of each altcoin within the selected group is compared to Bitcoin's performance over the chosen period (e.g., 90 days). This comparison usually involves calculating the percentage change in price for each altcoin and comparing it to the percentage change in Bitcoin's price over the same period.

  3. Index Calculation: The index then aggregates these comparisons to generate a single value. The method of aggregation can vary. Some indices might calculate the percentage of altcoins that have outperformed Bitcoin. Others might use a weighted average, giving more weight to larger-cap altcoins. For example, if 75% or more of the altcoins in the index have outperformed Bitcoin over the past 90 days, the market is typically considered to be in an altcoin season.

  4. Categorization: Based on the index value, the market is categorized into different phases:

    • Altcoin Season: A significant majority of altcoins are outperforming Bitcoin.
    • Bitcoin Season: Bitcoin is outperforming the majority of altcoins.
    • Transition Phase: Neither altcoins nor Bitcoin are clearly dominating, or the performance difference is not significant enough to declare a season.

Definition: Altcoin Season: A period in the cryptocurrency market where a significant number of altcoins outperform Bitcoin in terms of price growth.

Trading Relevance: Using the Altcoin Season Index to Make Informed Decisions

The Altcoin Season Index is a valuable tool for cryptocurrency traders and investors, providing insights that can inform investment strategies. Here's how it can be used:

  1. Identifying Market Trends: The index helps you understand the prevailing market sentiment. Is the market currently favoring altcoins, or is Bitcoin dominating? This information can guide your asset allocation decisions.

  2. Asset Allocation: During an altcoin season, investors might consider reallocating some of their Bitcoin holdings into altcoins to potentially capitalize on higher growth. Conversely, during a Bitcoin season, a shift towards Bitcoin might be prudent.

  3. Risk Management: The index can help manage risk. If the index signals an altcoin season, you might consider diversifying your portfolio across various altcoins. Conversely, during a Bitcoin season, focusing on Bitcoin can be a more conservative strategy.

  4. Entry and Exit Points: The index can be used to identify potential entry and exit points for trades. For example, if the index signals the start of an altcoin season, it might be a good time to enter positions in promising altcoins. Conversely, as the altcoin season wanes, you might consider taking profits or shifting back to Bitcoin.

  5. Correlating with Other Metrics: The Altcoin Season Index should not be used in isolation. It should be combined with other technical and fundamental analysis tools like Bitcoin dominance, trading volume, market sentiment indicators, and on-chain metrics.

Risks and Limitations

While the Altcoin Season Index is a valuable tool, it's essential to be aware of its limitations and potential risks:

  1. Lagging Indicator: The index is a lagging indicator. It reflects past performance, not necessarily future performance. Altcoin seasons can end abruptly, and the index might only signal a trend after it has already begun.

  2. Market Volatility: The cryptocurrency market is highly volatile. Altcoin prices can fluctuate significantly, even during an altcoin season. This volatility increases the risk of losses.

  3. Index Methodology: Different index providers may use different methodologies, leading to varying results. It's crucial to understand the methodology behind the index you're using.

  4. Market Manipulation: The cryptocurrency market is susceptible to manipulation. Large players can influence the prices of altcoins, potentially distorting the index's signals.

  5. Over-Reliance: Don't rely solely on the Altcoin Season Index. Always conduct thorough research and consider other factors before making investment decisions.

History and Real-World Examples

Altcoin seasons are a recurring phenomenon in the cryptocurrency market. They often coincide with periods of relative stability or correction in Bitcoin's price. Here are some examples:

  • 2017 Altcoin Boom: This was one of the most prominent altcoin seasons, with many altcoins experiencing exponential price growth. Bitcoin's dominance declined significantly during this period as investors poured capital into altcoins.

  • 2021 Altcoin Rally: Following the 2020 Bitcoin halving, the market saw another significant altcoin rally. Ethereum, in particular, performed exceptionally well. The Altcoin Season Index would have likely signaled the onset and duration of this period.

  • Early 2024: The market experienced a period of high volatility, with Bitcoin reaching all-time highs and altcoins experiencing a mixed performance. The Altcoin Season Index would have helped investors navigate this period and adjust their portfolios accordingly.

Understanding the Altcoin Season Index is crucial for anyone involved in the cryptocurrency market. By tracking this metric, investors can gain valuable insights into market trends, manage risk, and make more informed investment decisions. However, it is essential to remember that the index is just one piece of the puzzle and should be used in conjunction with other research and analysis techniques.

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Disclaimer

This article is for informational purposes only. The content does not constitute financial advice, investment recommendation, or solicitation to buy or sell securities or cryptocurrencies. Biturai assumes no liability for the accuracy, completeness, or timeliness of the information. Investment decisions should always be made based on your own research and considering your personal financial situation.