The Altcoin Season Index rose to 54, approaching the market turning threshold.
The Altcoin Season Index, a broad reference indicator tracked by CoinMarketCap, has risen 4 points in recent days to 54, further approaching the threshold in historical data that indicates a shift in market momentum away from Bitcoin. The index compares Bitcoin's price performance over a 90-day period with the top 100 cryptocurrencies by market capitalisation (excluding stablecoins and encapsulated coins).
How the index works
The index is designed to provide a clear, data-driven snapshot of market sentiment. A reading of 100 means that almost all major altcoins have outperformed Bitcoin in the past three months; a reading of 0 means the opposite-Bitcoin dominates the market. When 75% of the top 100 currencies outperform Bitcoin, the index enters the altcoin seasonal range. The current reading is 54, and the market is in a neutral and favorable range for altcoins.
What does this mean for investors
4-point fluctuations in a single day are not uncommon, but the trend of continuing to climb towards the 75% threshold is worthy of attention. Historical data shows that after the index steadily exceeds 50, there is often broader market rotation, with funds flowing from Bitcoin to smaller cryptocurrencies. However, the current index is still below the clear "altcoin season" sign, indicating that Bitcoin remains relatively strong compared to the overall market.
The background behind the rise
The recent rise is related to the increase in trading volume in multiple mid-cap altcoins and the renewed focus on areas such as decentralized finance (DeFi) and second-tier expansion solutions. Market analysts note that improved regulatory clarity in certain jurisdictions and upcoming network upgrades on multiple projects have contributed to the relatively strong performance of some altcoins in the past 90 days. However, the Bitcoin dominance rate currently hovers around 55% of the total market value of cryptocurrencies, which is an important balancing factor.
Conclusion
The altcoin seasonal index is at 54, indicating that the market is in a transition period but has not yet fully entered the altcoin season. For traders and long-term investors, the index is a useful indicator for understanding the trend of capital rotation. Continued attention to the index, combined with other indicators such as bitcoin dominance rate and transaction volume, will help to more clearly determine whether the market is heading for a sustained rebound in altcoins or returning to a bitcoin-dominated market.
Frequently Asked Questions
Q1: What is the altcoin seasonal index?
The Altcoin Seasonal Index is an indicator launched by CoinMarketCap that measures whether most of the top 100 cryptocurrencies (excluding stablecoins) have outperformed Bitcoin in the past 90 days. A reading above 75 indicates altcoin season.
Q2: Does a reading of 54 mean the altcoin season has begun?
No. 54 is still below the threshold of 75, which is not enough to officially declare the altcoin season. This suggests that the altcoin is gaining relative strength, but has not yet fully and decisively outperformed Bitcoin.
Q3: How often does the index change?
The index is updated daily by CoinMarketCap based on rolling 90-day price performance data. One-day market fluctuations can lead to change, but persistent trends are more meaningful than one-day changes.

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