During market downturns, altcoins are usually more affected than Bitcoin.

From the perspective of capital flow, when the market declines, Bitcoin, due to its core position in the cryptocurrency space, higher recognition, and relatively broader application scenarios, becomes a safe haven for some funds during market panic. Institutions and market makers will pull funds from altcoins to Bitcoin when market sentiment changes, resulting in significant selling pressure on altcoins.

From the perspective of value support, Bitcoin has a first-mover advantage and a relatively stronger technological and community foundation as its value support. Many altcoins are imitations or improvements based on the Bitcoin model, and their value support systems are relatively weak. When the market declines, altcoin prices are more likely to collapse.

From the perspective of market confidence, investors typically have more confidence in Bitcoin than in altcoins. Once negative factors such as policy tightening or changes in the macroeconomic environment occur, altcoin investors tend to lose confidence more quickly, leading to a large-scale sell-off of altcoins and causing their prices to drop significantly.