$ETH Ethereum (ETH) is the second-largest cryptocurrency by market capitalization, known for its smart contract functionality and role in decentralized applications (dApps). Launched in 2015, Ethereum enables developers to build blockchain-based platforms, powering sectors like DeFi, NFTs, and gaming. Its recent shift to proof-of-stake via the Merge significantly reduced its energy consumption and improved scalability prospects. Ethereum’s upcoming upgrades aim to further enhance speed and reduce gas fees. ETH is widely used for transactions, staking, and as collateral in DeFi. Despite growing competition from other smart contract platforms, Ethereum remains a dominant force due to its developer community, innovation, and robust infrastructure.