A giant whale "sells low and sucks high" misses out on potential gains of $42.64 million

According to EmberCN monitoring, a giant whale address "sold low and sucked high", turning 35,754 ETH into 19,302 ETH, losing $42.64 million.
The address sold 50,754 ETH for 89.03 million USDT at $1,754 on April 23, 15,000 of which were borrowed to sell short. It then bought the 89.03 million USDT back for 34,343 ETH at $2,592 today, 27 days later.
In terms of the amount of ETH, he lost 16,452 ETH: the 35,754 ETH he originally held became 19,302 ETH. In terms of value, he lost $42.64 million: the 19,302 ETH he now holds is worth $50.04 million, while the 35,754 ETH is currently worth $92.69 million.