$ETH experienced a significant rebound in Q3 2026, gaining +70.91% after earlier quarterly declines of -29.26% in Q1 and -25.28% in Q2, marking its strongest quarterly performance since Q1 2021 when it rose 160.7%. The asset outperformed Bitcoin by +27% during the quarter, with net inflows to ETH ETFs reaching $3.05 billion compared to $714 million in outflows in Q2. Exchange supply of ETH fell to 3.49%, the lowest level since 2018, while the ETH/BTC ratio increased from 0.0268 to 0.032, indicating a rotation back into Ethereum. Trading around $2,704, some analysts have suggested potential for further upside toward $3,500 in Q4, though market conditions remain dynamic as the cryptocurrency sector continues to evolve.