
The Altcoin Season Index has sharply declined to 25, showing a marked decrease in altcoin performance and reinforcing Bitcoin's dominance in the market.
The CoinMarketCap Altcoin Season Index has fallen to 25 on October 17, down from 78 on September 20, reflecting a significant shift towards Bitcoin dominance. Over the past 90 days, 25 of the top 100 cryptocurrencies outperformed Bitcoin, highlighting a shift in market trends.