On December 7th, according to Coinmarketcap data, the Altcoin Season Index is currently reported at 19, having previously reached 78 on September 20th, with a weekly average of 25. This index shows that in the past 90 days, about 19 projects among the top 100 cryptocurrencies by market cap have outperformed Bitcoin.

Note: The CMC Altcoin Season Index is a real-time indicator used to determine whether the current cryptocurrency market is in an altcoin-dominated season. This index is based on the performance of the top 100 altcoins relative to Bitcoin over the past 90 days.