Bitdeer Closes Gap With MARA in Bitcoin Mining Race

Bitdeer Technologies significantly reduced the gap with MARA in December as competition among public Bitcoin miners intensified. The company reported production of 636 BTC, implying a realized hashrate of approximately 51.2 EH/s, up 20% month over month.

The increase was fueled by the continued energization of Bitdeer’s proprietary SEALMINER ASIC fleet. By relying on in-house hardware, the company strengthens vertical integration and gains tighter control over operating efficiency.

As a result, Bitdeer is now closing in on the industry leader.

MARA remains ahead, but margins are narrowing

Although MARA Holdings no longer discloses total corporate output, its MARA Pool mined 675 BTC in December. This corresponds to an estimated hashrate of about 52 EH/s. When factoring in joint ventures in the Middle East, MARA likely retains the top spot.

However, Bitdeer is approaching quickly. By the end of December, its deployed proprietary hashrate reached 55.2 EH/s, with an additional 1.7 EH/s delivered but not yet energized. If uptime remains strong, Bitdeer could further challenge MARA in early 2026.

Mining economics remain under pressure

The production gains come amid persistent stress across the Bitcoin mining sector. Network difficulty remains elevated, while hashprice continues to trade below the critical $40 per PH/s threshold. This limits cash flow even for large-scale operators.

Despite these headwinds, Bitdeer outperformed several peers. CleanSpark reported 622 BTC mined in December, placing it behind Bitdeer by realized output. Similar comparisons suggest Bitdeer has also moved ahead of IREN, at least temporarily.

Focus on proprietary ASIC strategy

Beyond self-mining, Bitdeer said total hashrate under management climbed to 71 EH/s, up from 60.3 EH/s in November. The increase reflects rapid SEALMINER deployment and the gradual retirement of older third-party rigs.

Overall, Bitdeer’s December results underline a strategic shift toward proprietary hardware. Still, sustained leadership will depend on efficiency, uptime, and broader improvements in mining profitability.

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