As of May 2025, Bitcoin's dominance (BTC.D) has decreased from 54.2% to 53.7%, indicating that funds are flowing into altcoins. Mainstream coins like Ethereum and Solana have seen significant price increases, potentially marking the start of the 'altcoin season.' In terms of trading strategy, it is advisable to take profits in batches, set stop-loss orders, and monitor the ETH/BTC ratio and technical indicators (such as RSI and MACD) to verify trend strength. Some potential coins like BNB and XRP are approaching historical highs, but caution is needed regarding the risk of Bitcoin price rebound reversing fund rotation. The current market is more strongly correlated with U.S. stocks, and macro policies and institutional movements (such as ETF progress) remain key variables.