Bitcoin (BTC) miner CleanSpark (CLSK) ended September with record production and a growing BTC treasury as it wrapped up a transformative fiscal year, the company said in a press release Friday. The Las Vegas-based mining firm produced 629 bitcoin during the month, averaging nearly 21 coins a day, and sold 445 BTC for about $49 million at an average price of $109,568. Its operational hashrate averaged 45.6 EH/s with fleet efficiency reaching 16.07 J/Th. The company's holdings rose to more than 13,000 self-mined BTC, underscoring its strategy of using bitcoin as a core treasury asset. Over the past year, CleanSpark expanded capacity with the purchase of GRIID Infrastructure , launched a derivatives program to manage volatility and fund operations and strengthened its balance sheet with $650 million in convertible notes and $400 million in bitcoin-backed credit facilities. Chief executive Matt Schultz said September was “monumental,” in the release, highlighting new leadership appointments and an additional $200 million in credit capacity. With 1.03 gigawatts (GW) of power under contract and 808 megawatts (MW) in use, CleanSpark is positioning itself as one of the industry’s largest self-operated miners heading into fiscal 2026. CleanSpark shares were 5.7% higher in early trade, around $16.00. Read more: CleanSpark Shares Rise After Getting $100M Bitcoin-Backed Credit From Coinbase Prime
