Ethereum's dominance in the decentralized finance (DeFi) sector has declined to 54% of the total value locked (TVL), according to DeFiLlama data. This marks a decrease from 63.5% at the beginning of 2025, nearing its lowest point since May 2025. Despite the reduction in market share, Ethereum continues to lead the DeFi space with a substantial TVL of approximately $45.4 billion.