According to CoinMarketCap (CMC) data, the CMC Altcoin Season Index currently stands at 17. The index measures market performance by analyzing the top 100 cryptocurrencies by market capitalization to determine whether the market is shifting towards altcoins or Bitcoin dominance.
Over the past 90 days, 17 of these altcoins have outperformed Bitcoin in terms of price growth, signalling a weakening altcoin trend.