ETH closed near $2,687 on Oct. 4 after briefly reaching $2,765 a day earlier, leaving $2,700 to $2,800 as the key resistance area before a potential advance toward $3,000. A rejection would keep $2,600 to $2,650 as the first significant support zone. U.S. spot Ethereum ETFs posted net outflows for three consecutive sessions through Oct. 2, including $59.6 million on Sept. 30, $55.4 million on Oct. 1 and $17.3 million on Oct. 2, reversing the stronger demand seen earlier in the quarter. Ethereum's Glamsterdam upgrade is scheduled to activate on the Sepolia testnet on Oct. 6, introducing changes focused on Layer-1 scaling, block construction and gas-pricing efficiency ahead of an anticipated fourth-quarter mainnet release.