Grayscale sold Bitcoin and Ethereum again tonight. The four major short positions in the cryptocurrency market are: 1. Ethereum Foundation 2. Grayscale 3. Mentougou 4. 80,000 Bitcoin Ancient Whale However, both Mentougou and the 80,000 Bitcoin whale have already sold most of their holdings. The only ones left with significant holdings are the Ethereum Foundation and Grayscale, and the market won't be able to digest them all in a short time.