$BTC fuels the 2025 crypto comeback at $102,000 on May 9, up from $101,000.01. Altcoins are surging: Ethereum (ETH) at $2,217, now up 16% today (from $1,910.34), and Solana (SOL) at $162, up 8% (from $150). Hypothetical charts: ETH’s daily chart might show a breakout above $2,200 resistance, with an RSI of 72 (overbought) and volume up 40%, while SOL’s chart could indicate a push past $160, with an RSI of 68 and a 30% volume spike. Risk strategies: With ETH and SOL overbought, a BTC dip to $100,458.08 could pull ETH to $2,100 and SOL to $152. Use stop-losses at 5% below entry or shift 25% to USDC to hedge against a correction.