Bitdeer Challenges MARA for Top Spot After December Bitcoin Production Jump
Bitdeer narrowed the gap with MARA as the largest public bitcoin miner in December, producing 636 BTC and implying a realized hashrate of 51.2 EH/s, up 20% from November.
Bitdeer said on Tuesday that the increase in December’s output was driven by the continued energization of Bitdeer’s proprietary SEALMINER fleet. Based on network-level assumptions, the production figure implies a realized hashrate that places the company close behind MARA.
Although MARA no longer reports company-wide bitcoin output, its proprietary MARA Pool mined 675 BTC in December. That figure implies a realized hashrate of roughly 52 EH/s. When combined with MARA’s share of joint-venture operations in the Middle East, the company is still likely the largest public miner by realized hashrate, based on available data.
Even so, Bitdeer’s December report suggests it is closing in. The company said its deployed proprietary hashrate reached 55.2 EH/s by month-end, with an additional 1.7 EH/s delivered but not yet energized. If Bitdeer is able to sustain higher uptime levels as more SEALMINER units come online, it could intensify the competition with MARA in the coming months.
The timing is notable, as bitcoin mining economics remain under pressure amid elevated network difficulty and compressed hashprice, which is still below the crucial $40/PH/s threshold.
Bitdeer’s December performance also moved it ahead of several peers. CleanSpark previously reported mining 622 BTC in December, implying a realized hashrate of about 47.1 EH/s, placing it behind Bitdeer based on month-end production data. The same comparison suggests Bitdeer has also overtaken IREN to become the second-largest public miner by realized hashrate for now.
Beyond self-mining, Bitdeer said total hashrate under management reached 71 EH/s in December, up from 60.3 EH/s a month earlier, reflecting the rapid pace of SEALMINER deployment. The company added that it continues to retire older third-party rigs as it shifts more capacity toward its own hardware.
