Coinmarketcap data shows that the Altcoin Season Index is currently at 48, up 1 point from yesterday, and has not entered a clear altcoin season. The index shows that in the past 90 days, about 48 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. It is commonly used to determine whether the current cryptocurrency market is in an altcoin-dominated season.