Shares of Hut 8 Mining Corp. /zigman2/quotes/208114896/composite HUT +1.91% /zigman2/quotes/201015245/delayed CA:HUT +1.56% rallied 4.2% in premarket trading Tuesday, after the bitcoin miner said it generated 277 bitcoin /zigman2/quotes/31322028/realtime BTCUSD -0.99% in September, at an average rate of 9.2 bitcoin per day. That brings the company's total bitcoin held in reserve to 8,388, which at current prices would be valued at about $167.6 million. "We continue to add to our Bitcoin on balance sheet, which is the largest unencumbered, self-mined stack of any publicly-traded mining company," said Chief Executive Jaime Leverton. The stock has run up 38.4% over the past three months, while bitcoin has gaied 2.9% and the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.27% has lost 3.8%.





