Ethereum can achieve a fully decentralized trading and matching platform through Layer 2 solutions. Platforms like Optimism and Arbitrum enable scalable, low-cost transactions while inheriting Ethereum’s security. Decentralized exchanges (DEXs) such as Uniswap or dYdX leverage Layer 2 to process trades off-chain, with settlement on Ethereum’s mainnet, ensuring trustlessness and transparency. Zero-knowledge rollups or optimistic rollups facilitate high-throughput matching engines, reducing latency and gas fees. Smart contracts govern order books and trade execution, maintaining decentralization without centralized intermediaries. These solutions preserve Ethereum’s core principles—security, censorship resistance, and trust minimization—while enabling efficient, scalable trading platforms capable of handling high transaction volumes.