币界网报道：Bitcoin's market dominance has surged to a new high of 54.8%, its highest level since April 2021, as altcoins struggle amid broader market uncertainty. The rise comes as Bitcoin's price rebounds above $43,000, while Ethereum and other major altcoins lag behind. Analysts attribute Bitcoin's outperformance to growing institutional interest, particularly through spot Bitcoin ETFs, which have seen significant inflows. Meanwhile, altcoins face pressure from regulatory concerns and reduced risk appetite among traders. The widening gap between Bitcoin and altcoins suggests a potential market rotation, with investors favoring Bitcoin's relative stability. Some experts warn that if Bitcoin's dominance continues climbing, it could signal prolonged weakness for altcoins until market sentiment improves.