According to BlockBeats, the Altcoin Season Index has decreased to 62, following a peak of 78 on September 20. This index indicates that in the past 90 days, approximately 62 out of the top 100 cryptocurrencies by market capitalization have outperformed Bitcoin.

The Altcoin Season Index, provided by Coinmarketcap, serves as a real-time measure to assess whether the cryptocurrency market is currently dominated by altcoins. It is based on the performance of the top 100 altcoins relative to Bitcoin over the last 90 days.