CoinMarketCap’s Altcoin Season Index fell to 37, down three points from yesterday. The gauge compares the 90-day price performance of Bitcoin with that of the top 100 coins by market capitalization, excluding stablecoins and wrapped coins. Altcoin season is identified when at least 75% of those coins outperform Bitcoin; otherwise, conditions are considered Bitcoin season. Readings closer to 100 indicate stronger altcoin-season conditions.