On October 2, as the market rebounded from the bottom, on-chain monitoring data showed that several top whale addresses began to act frequently. In the last 9 hours, a well-known research institution transferred 24,051 ETH to an exchange in a single transaction, amounting to as much as $104.3 million. During the same period, a large OTC trading investor sold 20,830 Ethers through a market maker channel, with a transaction size of approximately $98.3 million. Earlier, 5 hours ago, a senior holder in the Ethereum ecosystem also transferred 4,000 ETH to a mainstream custody platform, valued at nearly $17.31 million. Behind this series of operations reflects the whales' profit-taking strategy during the market rebound window - concentrating on dumping when the market is favorable is a routine risk management method for large investors. Such on-chain activities often indicate that short-term rises may face pressure.