On December 26, according to Coinmarketcap data, the Altcoin Season Index was temporarily at 17 (up from 18 yesterday), having previously risen to 78 on September 20. The index shows that in the past 90 days, approximately 17 of the top 100 cryptocurrencies by market capitalization have outperformed Bitcoin.
Note: The CMC Crypto Altcoin Season Index is a real-time indicator used to determine whether the current cryptocurrency market is in an Altcoin dominated season. The index is based on the performance of the top 100 Altcoin relative to Bitcoin over the past 90 days.






