Altcoin Season Index drops to 33
May 20, 2026, 1:44 AM
CoinMarketCap's Altcoin Season Index is currently at 33, a decrease of two points from yesterday. The index measures whether altcoins are outperforming Bitcoin. An 'altcoin season' is declared when 75% of the top 100 coins, excluding stablecoins and wrapped tokens, perform better than Bitcoin over the preceding 90 days. Conversely, a lower score indicates a 'Bitcoin season.' A reading closer to 100 signals a stronger altcoin season.Log in to leave comments!
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