$ETH commonly represented as ETH/USD, indicates the value of Ethereum against the US dollar and is one of the most relevant in the crypto ecosystem. Ethereum, more than a currency, is a platform for smart contracts and decentralized applications, which gives it a fundamental role in the development of Web3. The price of ETH can fluctuate due to factors such as updates in the network (like the transition to proof of stake), adoption of DeFi and NFT applications, and macroeconomic conditions. Its behavior against the dollar is key to analyzing technological trends and the crypto market.