Just nine cryptocurrencies in the top 50 by market capitalization have outperformed Bitcoin since it reached its all-time high, according to Glassnode data. The vast majority of major altcoins have lagged behind the flagship cryptocurrency during this period. ZEC leads the outperformers with a 14x gain against Bitcoin, while HYPE, XMR, and NEAR follow with returns ranging from 2x to 3x. The data highlights significant divergence in altcoin performance despite Bitcoin's record price levels.