According to @EmberCN, a whale trader has successfully converted 3,586 ETH into 5,515 ETH through strategic high-frequency trading. The trader recently sold ETH that was bought earlier today at a lower price. Specifically, the trader bought 5,093 ETH for 12.11 million USDT and sold it shortly after for 12.23 million USDT, making a profit of 125,000 USDT. It will be interesting to see when this trader will reinvest the 12.23 million USDT back into ETH.