An altcoin season, often called altseason, is a specific period in the cryptocurrency market where a large majority of alternative coins outperform Bitcoin significantly over a rolling 90-day window․
Table of contents
Understanding the Market Cycles
To pinpoint the last major altseason, analysts typically look at the Altcoin Season Index․ When 75 percent or more of the top 100 cryptocurrencies by market capitalization surpass Bitcoin in performance, the official criteria for an altseason are met․
- Bitcoin Season: Capital flows primarily into Bitcoin, increasing its market dominance․
- Transition Phase: Profits from Bitcoin often rotate into large-cap altcoins, then filter down into mid and small-cap tokens․
- Altseason: Extreme market-wide volatility and speculative momentum take over․
Looking Back at Recent Trends
The cryptocurrency market cycles have evolved rapidly over the past few years․ Historically, the monumental altseasons occurred during broader macro bull runs, notably the massive market expansions․ In subsequent periods, liquidity has often remained fragmented․ While temporary surges and sector-specific rallies—such as spikes in meme coins, artificial intelligence tokens, or layer-one ecosystems—frequently occur, a full-scale, market-wide altseason meeting the strict 75 percent threshold has been elusive․ Most recent market cycles have oscillated predominantly between Bitcoin dominance phases and brief, localized altcoin rallies rather than a sustained, universal altseason․
Determining the exact timeframe of the last true altseason depends heavily on tracking tools like CoinGlass and specific index parameters․ While investors continually search for signs of declining Bitcoin dominance to signal the next big rotation, historical data shows that these explosive periods require massive, sustained inflows of fresh retail and institutional capital across the entire digital asset ecosystem․
