According to Crypto Rover, Ethereum (ETH) is approaching a critical technical level and, once it breaks its yearly downtrend, significant upside momentum is expected across altcoins (Source: Crypto Rover on Twitter, May 29, 2025). Traders should monitor ETH’s price action closely, as a confirmed breakout above the downtrend line could trigger broad altcoin rallies. This technical setup suggests heightened volatility and potential high-reward entries for altcoin traders, with ETH often leading market sentiment shifts in the crypto ecosystem.