Trader Expands Bitcoin Range Bets on Polymarket While Increasing Short Position on Hyperliquid

A cross-market trader known as 58bro.eth, also identified as LucasMeow, recently bought Polymarket contracts betting that Bitcoin will not fall below $70,000 or rise above $95,000, according to TradingBeats monitoring on September 20. According to BlockBeats On-chain Detection, the trader has also continued to expand a Bitcoin short position on Hyperliquid. From September 19 to 20, LucasMeow bought about 10,000 shares of the "BTC will fall to $70,000 in September" No contract for about $9,604, about 8,578 shares of the "BTC will touch $95,000 in September" No contract for about $8,180, and about 50,000 shares of the "BTC will touch $100,000 in September" No contract for about $49,300. As of press time, the implied market probabilities for those three outcomes were about 95.3%, 95.7%, and 98.85%, respectively. This was not his first time trading Bitcoin monthly range expectations. In July, he predicted Bitcoin would not fall to $47,500 or rise to $75,000, and in August he widened the range to $60,000 to $100,000. This time, he raised the lower boundary to $70,000 while narrowing the upper boundary to $95,000, creating a higher and tighter range expectation than in August. In his 19 Bitcoin and Ether monthly price predictions from July to August, all trades were profitable, generating about $12,700 in total gains. Those positions were all No contracts, and most were entered when the implied probability was already above 95%, suggesting a strategy focused on extracting returns from high-probability range views rather than betting on large one-way moves. However, LucasMeow's Hyperliquid positions were not fully neutral. Over the past three days, his Bitcoin short position increased from 88.75 BTC to 105.25 BTC. His combined Bitcoin and Ether short positions were about $26.137 million, with unrealized losses of about $1.132 million. Data showed that his cumulative profit on Hyperliquid had reached $33.7 million, with a historical win rate of 90% and an average holding period of about 23 days, which was linked to his monthly prediction-market trades.