According to Miles Deutscher, recent strong upward movement in Ethereum (ETH) prices is directly enabling a revaluation of altcoin markets to the upside, signaling a bullish environment for altcoin traders (Source: @milesdeutscher, Twitter, May 18, 2025). This ETH-driven momentum often leads to increased capital inflows and higher trading volumes across a wide range of altcoins, making it a critical signal for market participants looking to capture short-term gains or adjust portfolio allocations. Monitoring ETH price action is thus essential for anticipating broader altcoin market trends and optimizing trading strategies.