According to Crypto Rover, Ethereum (ETH) is currently outperforming Bitcoin (BTC) in the second quarter of 2025, signaling the potential onset of an altseason. This trend is significant for traders as historically, periods where ETH shows relative strength against BTC often lead to increased capital flows into altcoins, boosting overall market volatility and opportunity. The ETH/BTC pair's upward momentum could attract more short-term and swing trading strategies focused on altcoins, as confirmed by the performance chart shared by Crypto Rover (source: Twitter, @rovercrc, June 10, 2025). Traders should monitor ETH/BTC ratios and altcoin market caps for further confirmation of this altseason trend.