币界网报道：Bitcoin's market dominance has surged to 54.5%, its highest level since April 2021, signaling a potential delay in altcoin season according to the Altcoin Season Index. The index currently sits at 18, far below the 75 threshold typically indicating altcoin season. Analysts note this dominance spike reflects investors' preference for Bitcoin amid macroeconomic uncertainty, with altcoins underperforming despite recent crypto market rallies. The last altcoin season occurred in early 2021 when the index exceeded 75 for several months. Market observers point to Bitcoin's institutional adoption through spot ETFs and its perception as a "digital gold" hedge against inflation as key factors driving its dominance. Some traders remain optimistic about altcoins, suggesting Bitcoin's dominance may peak soon, potentially triggering capital rotation into smaller-cap tokens. However, technical indicators show Bitcoin continuing to outperform most major altcoins in both price action and trading volume. The current market structure resembles 2020's pattern where Bitcoin led the initial recovery before altcoins eventually rallied. Crypto analysts advise watching for stabilization in Bitcoin dominance around 50% as a potential signal for altcoin season preparation.