After ETH's flash crash at $1,011, a high-profile big short player emerged in the market. The trader, known as the "insider," made significant gains by shorting the property.

What's even more interesting is that now the ETH long position size of this account has exceeded $170 million. In the recent pullback, the large investor also added a long position of 30,000 ETH. It seems that he is quite optimistic about the market outlook, and this large-scale position building action is worthy of the attention of market participants.

From idling to more, the logic behind this position switching is intriguing.