Mysterious OG Whale Makes Another Move: $267 Million Position, 5x Leverage Bet on ETH

[BlockBeats] According to Coinbob address monitoring data, that mysterious account known as the “BTC OG Insider Whale” (address starting with 0xb31) now has a latest position swelling to $267 million. The account shows a paper profit of $15.97 million, with a 30% return. Interestingly, his average purchase price has quietly risen from $3,068 yesterday to $3,108.

Last night, this whale poured another $50 million into Hyperliquid and casually added 985 ETH long positions (about $3.25 million). However, this money is basically still sitting idle for now.

Looking back, from the night of December 7 to the morning of the 8th, he transferred $70 million in batches from a major exchange to Hyperliquid, then directly opened a 5x leveraged long on ETH—this was his most aggressive position build in the past month. At that time, the cost price was $3,048, with a position size of about $160 million.

The background of this address is even more mysterious. In his early days, he held over 50,000 BTC, remained dormant for a full 8 years before resurfacing, and later gradually swapped some BTC for ETH. Even more intriguingly, his trades often coincide almost perfectly with certain policy trends and public statements. For example, a few hours before the “10.11” crash, he preemptively set up a $500 million BTC short and ended up making nearly $100 million. Garrett Jin, an executive at a trading platform, once revealed that this address is somewhat related to their clients—but no one knows exactly who it is.