Coinbase’s market outlook predicts a significant shift in the cryptocurrency landscape, with Altcoin Season poised to fully materialize in September 2025. The firm highlights several key indicators that suggest this impending event: the declining dominance of Bitcoin and the burgeoning institutional interest in Ethereum (ETH). As retail investors become more active in crypto markets, these factors are expected to drive capital towards higher-risk altcoins, creating a period of rapid growth and profitability known as Altcoin Season. Coinbase’s analysis suggests that this season has already begun with Bitcoin dominance declining from 65% to 59%. This signals a shift from the traditional, risk-averse market to one where altcoins experience significant price appreciation, attracting both individual investors and institutional players. The article details specific factors driving Altcoin Season, including: institutional demand for ETH, the growing liquidity of the crypto market, and a predicted increase in regulatory clarity. Although positive, it cautions that this potential opportunity also comes with risks like heightened volatility and uncertainty around future regulations.