Coinmarketcap data shows that the Altcoin Season Index is now reported at 48, a significant drop from last month's peak of 86. This index indicates that in the past 90 days, about 48 out of the top 100 cryptocurrencies by market value have outperformed Bitcoin. The CMC Cryptocurrency Altcoin Season Index is a real-time indicator based on the performance of the top 100 altcoins relative to Bitcoin over the past 90 days and is commonly used to determine whether the current cryptocurrency market is in an altcoin-dominated season.