Whale '58bro.eth' buys into the latest Bitcoin range prediction, while holding a $26 million short position.

BlockBeats news, September 20 - According to TradingBeats monitoring, cross-market trader 58bro.eth (X: 0x58bro) recently bought predictions on Polymarket simultaneously that BTC will not fall below $70,000 and will not rise above $95,000, with the portfolio approaching a bet on the range-bound trading for the remainder of September; meanwhile, on the Hyperliquid side, it continues to expand its BTC short position.

From September 19 to 20, 58bro.eth cumulatively bought

- Approximately 10,000 "BTC falls to $70,000 in September" No shares, investing about $9,604;

- Approximately 8,578 "BTC touches $95,000 in September" No shares, investing about $8,180.

- Approximately $49,300 to buy 50,000 "BTC touches $100,000 in September" No.

As of press time, the market-implied probabilities corresponding to the above three "not touch" directions are approximately 95.3%, 95.7%, and 98.85%, respectively.

This is not its first time trading the BTC monthly range. In July, 58bro.eth predicted BTC would not fall to $47,500 and would not rise to $75,000; in August, it expanded the range to $60,000 to $100,000. In this round, it raised the lower boundary to $70,000 while narrowing the upper boundary to $95,000, forming a higher and narrower range expectation compared with August.

Among its 19 BTC and ETH monthly price predictions from July to August, all recorded positive returns, with cumulative realized profit of approximately $12,700. These positions were all No, and most were bought when the corresponding probability had already exceeded 95%, leaning more toward earning the remaining odds through high-win-rate range judgments rather than betting on large one-sided moves.

However, 58bro.eth's positions on Hyperliquid are not completely neutral. Over the past three days, its BTC short position increased from 88.75 coins to 105.25 coins; its combined BTC and ETH short positions are approximately $26.137 million, with a combined unrealized loss of approximately $1.132 million.

Data shows that its cumulative profit on Hyperliquid has reached $33.7 million, with a historical win rate of 90%, and the average holding time per position is related to monthly predictions in the prediction market, at approximately 23 days.