Bitdeer Technologies Group (NASDAQ:BTDR) is one of the best cryptocurrency and blockchain stocks to buy now. On January 12, the company delivered impressive December 2025 production and operational results. During the month, the company achieved a 339% year-over-year increase in Bitcoin mined to 636 Bitcoins and a 21% month-over-month increase. Bitdeer Technologies Group (BTDR) SEALMINER Mining Rigs Fuel Robust Bitcoin Mining The significant increase in Bitcoin mining came as the self-mining hashrate rea ...