$ETH made a mistake by buying high and selling low. Six months ago, he spent 6.42 million dollars to purchase 1,805 ETH at a price of 3,559 dollars each. Two weeks ago, due to panic, he sold at a loss of 3.6 million dollars (-56%). Today, after the price of Ethereum rebounded, he spent 3.11 million dollars to buy back 1,734 ETH at a price of 1,792 dollars each.