Altseason Index
The share of a major-coin basket that has outperformed Bitcoin over the last 90 days.
Data warming up — this metric publishes after the next update.
What it means
A reading of 75 or more is often called “alt season” — most large alts are beating Bitcoin. A reading of 25 or less is “Bitcoin season”, when capital is concentrating in BTC. It measures breadth of outperformance, not magnitude.
See the methodologyfor how it's computed. Information only, not financial advice.