Altseason Index
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% of top-50 altcoins outperforming BTC over the last 30 days. Above 75 = altseason. Below 25 = Bitcoin season.
#
Asset
Price
30d Δ
Rel. to BTC
7d Δ
Methodology: Top-50 altcoins by market cap (stablecoins + wrapped BTC excluded). For each, we compare its 30-day return vs BTC's 30-day return. Index = outperformers / 50 × 100. Green-lit rows beat BTC in the window. Historical altseasons (2017 Q4, 2021 Q1) spent weeks above 75.