Ethereum (ETH) is currently favored over Solana (SOL) to achieve a new all-time high first, according to prediction markets and technical indicators. ETH has a 62% probability of reaching its ATH before SOL, requiring a 13.8% increase to hit the $4,954–$5,000 range. In contrast, SOL needs a 34.12% rally to reach $295.11. Ethereum's technical indicators, including a weekly RSI of 62 and an ADX of 32, suggest strong momentum and trend strength, while Solana's ADX of 17 indicates weaker directional conviction. Despite Ethereum's current advantage, an ETF catalyst could potentially accelerate Solana's performance. Fibonacci projections estimate that Ethereum could reach its ATH by December, whereas Solana's target is projected between late October 2025 and February 2026.