Coinbase Forecasts September 2025 Altcoin Season Shift
NewsCoinbase predicts a potential altcoin season in September 2025 due to ETH capital inflows.

- Main event: Coinbase anticipates shift towards altcoin season by September.
- Institutional interest in ETH and altcoins rising.
- Potential Bitcoin dominance decline impacting market dynamics.
Coinbase Institutional, led by David Duong, anticipates a full altcoin season potentially starting in September 2025, citing increasing institutional interest in Ethereum and declining Bitcoin dominance.
This prediction could shift investor focus toward altcoins, potentially catalyzing a market rotation, as both institutional and retail capital gravitate towards alternative cryptocurrencies like Ethereum and Solana.
Coinbase has indicated a potential shift towards a full-scale altcoin season by September 2025, driven by increasing institutional and retail capital flows into Ethereum. The institutional outlook report, led by David Duong, outlines the basis for this prediction.
David Duong, representing Coinbase Institutional, highlights the notable decline in Bitcoin dominance along with rising investments in major altcoins. Institutional and retail investors are pivotal in this evolving market trend, suggesting imminent changes.
The ongoing surge in altcoin market capitalization and Bitcoin’s reduced dominance reflect immediate changes in market behavior. Ethereum’s performance, marked by 86% gains in 90 days, acts as a barometer for these transitions.
Market analysts note that the decline in Bitcoin dominance could facilitate capital shifts to high-risk assets, including altcoins. The economic backdrop, coupled with potential Fed rate cuts, is seen as a possible catalyst for this trend.
Coinbase’s prediction outlines how improved liquidity may bolster retail investment in altcoins. The broader financial market dynamics suggest strategic shifts in asset allocations by September, impacting Ethereum and other major tokens.
Financial history suggests altcoin seasons follow periods of increased macro liquidity and BTC dominance contraction. Regulatory clarity and monetary policies could also steer investments towards Ethereum, Solana, and XRP, enhancing their appeal.
David Duong, Global Head of Research, Coinbase, “Improving liquidity and growing investor willingness to rotate into higher-beta assets will likely shift gains toward altcoins starting in September.”
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