Marathon Digital Holdings's (NASDAQ:MARA) mines 1,098 bitcoin (BTC-USD) during Q4, including a record 484.5 BTC mined in December. The December print compares with just 196 BTC mined in November. Total BTC holdings increase to approximately 8,133 coins with a fair market value of ~$375.8M. The company's hash rate of 3.5 EH/s in December also soars 1,790% from just 0.2 EH/s in January 2021. It receives about 10,365 ASIC miners from Bitmain in December; continues installing miners at various facilities operated by Compute North. "We expect to see these deployments accelerate as we move to full production," said Marathon Digital CEO Fred Thiel. Shares of MARA gain 0.6% in after-hours trading. Towards the end of 2021, Marathon Digital said it will buy an additional 78K bitcoin miners.