According to BlockBeats, data from Coinmarketcap indicates that the Altcoin Season Index is currently at 19, after previously dropping to 15 on June 22. This index reveals that in the past 90 days, approximately 19 out of the top 100 cryptocurrencies by market capitalization have outperformed Bitcoin.
The CMC Altcoin Season Index is a real-time indicator used to assess whether the cryptocurrency market is currently in a phase dominated by altcoins. It is based on the performance of the top 100 altcoins relative to Bitcoin over the past 90 days.