币界网报道:Altcoins like Pengu, Sei, Fartcoin, and Syrup Virtual surged over 40% in June, outperforming major cryptocurrencies. The rally was driven by speculative trading and meme coin trends, with Pengu leading gains at 65%. Analysts attribute the spike to increased retail investor interest and social media hype, though caution remains due to high volatility. Market watchers note these altcoins' low liquidity makes them prone to sharp swings, advising investors to exercise caution despite the impressive short-term returns.