Lead
The widely tracked Altcoin Season Index currently reads 37, indicating it is not altcoin season. Over the past 90 days, only 60% of the top 50 cryptocurrencies outperformed Bitcoin, below the 75% threshold needed to confirm an altcoin season. It has been 127 days since the last altcoin season, with the historical average gap at 197 days.
Key Takeaways
- Altcoin Season Index: 37 (not altcoin season)
- Threshold: At least 75% of the top 50 coins must outperform Bitcoin over 90 days to signal altcoin season
- Current Outperformance: 30 of the top 50 (about 60%) have outpaced Bitcoin over the last 90 days
- Timing: 127 days since the last altcoin season vs. an average interval of 197 days
What the Index Shows
The Altcoin Season Index measures whether altcoins are broadly outperforming Bitcoin across a recent 90-day window. A reading below 75% indicates that Bitcoin remains comparatively stronger than the majority of large-cap altcoins. With the index at 37 and an explicit note that "It is not Altcoin Season," current market dynamics continue to favor Bitcoin.
Market Context
- The latest snapshot highlights mixed performance among major altcoins relative to Bitcoin, with several names lagging while others post intermittent spurts of strength.
- The 60% outperformance rate among the top 50 cryptocurrencies falls short of the 75% cutoff used to define a confirmed altcoin season.
- The time since the last altcoin season (127 days) remains below the 197-day historical average between such periods, suggesting the market has not yet entered a broad-based altcoin rotation.
Outlook
Traders will watch for a potential expansion in altcoin breadth—specifically, whether outperformance rises toward the 75% mark over the coming weeks. Until then, the index implies Bitcoin dominance remains intact and the market has yet to transition into a sustained altcoin-led phase.