The Altcoin Season Index has increased to 19, suggesting early momentum in the altcoin market. This index measures the performance of the top 100 cryptocurrencies against Bitcoin over a 90-day period, with 19% currently outperforming BTC. Although this rise hints at a potential market shift, it remains below the 75% threshold required to confirm a full-fledged altcoin season. Traders are advised to monitor the trend closely but exercise caution in making decisions based solely on this index.